Set x-keep-typed-in-additional-properties on UsageSummary schemas (#1760)

Co-authored-by: Charlie Zhang <charlie.zhang@datadoghq.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: ci.datadog-api-spec <packages@datadoghq.com>

Author: 4 people

.generator/schemas/v1/openapi.yaml

@@ -24110,6 +24110,7 @@ components:
           format: int64
           type: integer
       type: object
+      x-keep-typed-in-additional-properties: true
     UsageSummaryDateOrg:
       description: |-
         Global hourly report of all data billed by Datadog for a given organization.
@@ -25429,6 +25430,7 @@ components:
           format: int64
           type: integer
       type: object
+      x-keep-typed-in-additional-properties: true
     UsageSummaryResponse:
       description: |-
         Response summarizing all usage aggregated across the months in the request for
@@ -26776,6 +26778,7 @@ components:
           format: int64
           type: integer
       type: object
+      x-keep-typed-in-additional-properties: true
     UsageSyntheticsAPIHour:
       description: Number of Synthetics API tests run for each hour for a given organization.
       properties:

.generator/src/generator/templates/model_simple.j2

@@ -118,6 +118,13 @@ impl<'de> Deserialize<'de> for {{ name }} {
                 let mut _unparsed = false;
 
                 while let Some((k, v)) = map.next_entry::<String, serde_json::Value>()? {
+                    {%- if additionalProperties != false and model.get("x-keep-typed-in-additional-properties") %}
+                    // from_value::<serde_json::Value> is infallible so Ok always fires;
+                    // for typed AP schemas a type mismatch silently drops the entry (same as the catch-all arm).
+                    if let Ok(ap_value) = serde_json::from_value(v.clone()) {
+                        additional_properties.insert(k.clone(), ap_value);
+                    }
+                    {%- endif %}
                     match k.as_str() {
                         {%- for attr, schema in model.get("properties", {}).items() %}
                         {%- set required = attr in model.required %}

src/datadogV1/model/model_usage_summary_date.rs

@@ -3483,6 +3483,11 @@ impl<'de> Deserialize<'de> for UsageSummaryDate {
                 let mut _unparsed = false;
 
                 while let Some((k, v)) = map.next_entry::<String, serde_json::Value>()? {
+                    // from_value::<serde_json::Value> is infallible so Ok always fires;
+                    // for typed AP schemas a type mismatch silently drops the entry (same as the catch-all arm).
+                    if let Ok(ap_value) = serde_json::from_value(v.clone()) {
+                        additional_properties.insert(k.clone(), ap_value);
+                    }
                     match k.as_str() {
                         "agent_host_top99p" => {
                             if v.is_null() {

src/datadogV1/model/model_usage_summary_date_org.rs

@@ -3550,6 +3550,11 @@ impl<'de> Deserialize<'de> for UsageSummaryDateOrg {
                 let mut _unparsed = false;
 
                 while let Some((k, v)) = map.next_entry::<String, serde_json::Value>()? {
+                    // from_value::<serde_json::Value> is infallible so Ok always fires;
+                    // for typed AP schemas a type mismatch silently drops the entry (same as the catch-all arm).
+                    if let Ok(ap_value) = serde_json::from_value(v.clone()) {
+                        additional_properties.insert(k.clone(), ap_value);
+                    }
                     match k.as_str() {
                         "account_name" => {
                             if v.is_null() {

src/datadogV1/model/model_usage_summary_response.rs

@@ -3634,6 +3634,11 @@ impl<'de> Deserialize<'de> for UsageSummaryResponse {
                 let mut _unparsed = false;
 
                 while let Some((k, v)) = map.next_entry::<String, serde_json::Value>()? {
+                    // from_value::<serde_json::Value> is infallible so Ok always fires;
+                    // for typed AP schemas a type mismatch silently drops the entry (same as the catch-all arm).
+                    if let Ok(ap_value) = serde_json::from_value(v.clone()) {
+                        additional_properties.insert(k.clone(), ap_value);
+                    }
                     match k.as_str() {
                         "agent_host_top99p_sum" => {
                             if v.is_null() {