Make sure required params are first (#2777)

Co-authored-by: ci.datadog-api-spec <packages@datadoghq.com>

Author: api-clients-generation-pipeline[bot]

.generated-info

@@ -1,4 +1,4 @@
 {
-  "spec_repo_commit": "4413e63",
-  "generated": "2025-08-19 20:28:38.330"
+  "spec_repo_commit": "d58cb84",
+  "generated": "2025-08-22 18:45:21.021"
 }

.generator/schemas/v2/openapi.yaml

@@ -67451,14 +67451,6 @@ paths:
         This endpoint is only accessible for [parent-level organizations](https://docs.datadoghq.com/account_management/multi_organization/).'
       operationId: GetHistoricalCostByOrg
       parameters:
-      - description: String to specify whether cost is broken down at a parent-org
-          level or at the sub-org level. Available views are `summary` and `sub-org`.  Defaults
-          to `summary`.
-        in: query
-        name: view
-        required: false
-        schema:
-          type: string
       - description: 'Datetime in ISO-8601 format, UTC, precise to month: `[YYYY-MM]`
           for cost beginning this month.'
         in: query
@@ -67467,6 +67459,14 @@ paths:
         schema:
           format: date-time
           type: string
+      - description: String to specify whether cost is broken down at a parent-org
+          level or at the sub-org level. Available views are `summary` and `sub-org`.  Defaults
+          to `summary`.
+        in: query
+        name: view
+        required: false
+        schema:
+          type: string
       - description: 'Datetime in ISO-8601 format, UTC, precise to month: `[YYYY-MM]`
           for cost ending this month.'
         in: query

examples/v2/usage-metering/GetHistoricalCostByOrg.py

@@ -11,8 +11,8 @@
 with ApiClient(configuration) as api_client:
     api_instance = UsageMeteringApi(api_client)
     response = api_instance.get_historical_cost_by_org(
-        view="sub-org",
         start_month=(datetime.now() + relativedelta(months=-2)),
+        view="sub-org",
     )
 
     print(response)

src/datadog_api_client/v2/api/usage_metering_api.py

@@ -174,17 +174,17 @@ def __init__(self, api_client=None):
                 "version": "v2",
             },
             params_map={
-                "view": {
-                    "openapi_types": (str,),
-                    "attribute": "view",
-                    "location": "query",
-                },
                 "start_month": {
                     "required": True,
                     "openapi_types": (datetime,),
                     "attribute": "start_month",
                     "location": "query",
                 },
+                "view": {
+                    "openapi_types": (str,),
+                    "attribute": "view",
+                    "location": "query",
+                },
                 "end_month": {
                     "openapi_types": (datetime,),
                     "attribute": "end_month",
@@ -591,11 +591,11 @@ def get_historical_cost_by_org(
         :rtype: CostByOrgResponse
         """
         kwargs: Dict[str, Any] = {}
+        kwargs["start_month"] = start_month
+
         if view is not unset:
             kwargs["view"] = view
 
-        kwargs["start_month"] = start_month
-
         if end_month is not unset:
             kwargs["end_month"] = end_month