Clarify additionalProperties note is SDK-only; add per-language access patterns

.generator/schemas/v1/openapi.yaml

@@ -22813,10 +22813,11 @@ components:
       description: |-
         Response with hourly report of all data billed by Datadog for all organizations.
 
-        Newly added billing dimensions and usage types appear as untyped keys on the
-        `additionalProperties` map instead of as typed fields. Call
-        `GET /api/v2/usage/summary/available_fields` to enumerate every key returned
-        at this response level—both typed fields and `additionalProperties` keys.
+        For SDK users only: all fields at this response level are accessible through the
+        `additionalProperties` map. Existing typed-field getters are unchanged. New billing
+        dimensions will not have typed-field getters. Use
+        [Get available fields for usage summary](https://docs.datadoghq.com/api/latest/usage-metering/#get-usage-summary-available-fields)
+        to enumerate every available key.
       properties:
         agent_host_top99p:
           description: Shows the 99th percentile of all agent hosts over all hours in the current date for all organizations.
@@ -24115,10 +24116,11 @@ components:
       description: |-
         Global hourly report of all data billed by Datadog for a given organization.
 
-        Newly added billing dimensions and usage types appear as untyped keys on the
-        `additionalProperties` map instead of as typed fields. Call
-        `GET /api/v2/usage/summary/available_fields` to enumerate every key returned
-        at this response level—both typed fields and `additionalProperties` keys.
+        For SDK users only: all fields at this response level are accessible through the
+        `additionalProperties` map. Existing typed-field getters are unchanged. New billing
+        dimensions will not have typed-field getters. Use
+        [Get available fields for usage summary](https://docs.datadoghq.com/api/latest/usage-metering/#get-usage-summary-available-fields)
+        to enumerate every available key.
       properties:
         account_name:
           description: The account name.
@@ -25436,10 +25438,11 @@ components:
         Response summarizing all usage aggregated across the months in the request for
         all organizations, and broken down by month and by organization.
 
-        Newly added billing dimensions and usage types appear as untyped keys on the
-        `additionalProperties` map instead of as typed fields. Call
-        `GET /api/v2/usage/summary/available_fields` to enumerate every key returned
-        at this response level—both typed fields and `additionalProperties` keys.
+        For SDK users only: all fields at this response level are accessible through the
+        `additionalProperties` map. Existing typed-field getters are unchanged. New billing
+        dimensions will not have typed-field getters. Use
+        [Get available fields for usage summary](https://docs.datadoghq.com/api/latest/usage-metering/#get-usage-summary-available-fields)
+        to enumerate every available key.
       properties:
         agent_host_top99p_sum:
           description: Shows the 99th percentile of all agent hosts over all hours in the current month for all organizations.
@@ -43215,11 +43218,12 @@ paths:
       description: |-
         Get all usage across your account.
 
-        Newly added billing dimensions and usage types appear as untyped keys on the
-        `additionalProperties` map of `UsageSummaryResponse`, `UsageSummaryDate`, and
-        `UsageSummaryDateOrg` instead of as typed fields. Call
-        `GET /api/v2/usage/summary/available_fields` to enumerate every key returned
-        at each response level—both typed fields and `additionalProperties` keys.
+        For SDK users only: all fields on `UsageSummaryResponse`, `UsageSummaryDate`, and
+        `UsageSummaryDateOrg` are accessible through each object's `additionalProperties` map.
+        Existing typed-field getters are unchanged. New billing dimensions will not have
+        typed-field getters. Use
+        [Get available fields for usage summary](https://docs.datadoghq.com/api/latest/usage-metering/#get-usage-summary-available-fields)
+        to enumerate every available key at each response level.
 
         This endpoint is only accessible for [parent-level organizations](https://docs.datadoghq.com/account_management/multi_organization/).
       operationId: GetUsageSummary

.generator/schemas/v2/openapi.yaml

@@ -187306,6 +187306,37 @@ paths:
         dimensions and usage types added after the v1 schema freeze).
 
         This endpoint is only accessible for [parent-level organizations](https://docs.datadoghq.com/account_management/multi_organization/).
+
+        Go example:
+
+        ```go
+        fields, _, err := api.GetUsageSummaryAvailableFields(ctx)
+        attr := fields.Data.GetAttributes()
+
+        // resp is the *UsageSummaryResponse returned by api.GetUsageSummary(ctx, ...)
+        // Layer 1: UsageSummaryResponse
+        for _, key := range attr.GetResponseFields() {
+            if val, ok := resp.AdditionalProperties[key]; ok {
+                fmt.Println(key, val.(json.Number))
+            }
+        }
+        // Layer 2: UsageSummaryDate (per month)
+        for _, date := range resp.GetUsage() {
+            for _, key := range attr.GetDateFields() {
+                if val, ok := date.AdditionalProperties[key]; ok {
+                    fmt.Println(key, val.(json.Number))
+                }
+            }
+            // Layer 3: UsageSummaryDateOrg (per org per month)
+            for _, org := range date.GetOrgs() {
+                for _, key := range attr.GetDateOrgFields() {
+                    if val, ok := org.AdditionalProperties[key]; ok {
+                        fmt.Println(key, val.(json.Number))
+                    }
+                }
+            }
+        }
+        ```
       operationId: GetUsageSummaryAvailableFields
       responses:
         "200":

src/datadog_api_client/v1/api/usage_metering_api.py

@@ -2170,11 +2170,12 @@ def get_usage_summary(
 
         Get all usage across your account.
 
-        Newly added billing dimensions and usage types appear as untyped keys on the
-        ``additionalProperties`` map of ``UsageSummaryResponse`` , ``UsageSummaryDate`` , and
-        ``UsageSummaryDateOrg`` instead of as typed fields. Call
-        ``GET /api/v2/usage/summary/available_fields`` to enumerate every key returned
-        at each response level—both typed fields and ``additionalProperties`` keys.
+        For SDK users only: all fields on ``UsageSummaryResponse`` , ``UsageSummaryDate`` , and
+        ``UsageSummaryDateOrg`` are accessible through each object's ``additionalProperties`` map.
+        Existing typed-field getters are unchanged. New billing dimensions will not have
+        typed-field getters. Use
+        `Get available fields for usage summary <https://docs.datadoghq.com/api/latest/usage-metering/#get-usage-summary-available-fields>`_
+        to enumerate every available key at each response level.
 
         This endpoint is only accessible for `parent-level organizations <https://docs.datadoghq.com/account_management/multi_organization/>`_.
 

src/datadog_api_client/v1/model/usage_summary_date.py

@@ -943,10 +943,11 @@ def __init__(
         """
         Response with hourly report of all data billed by Datadog for all organizations.
 
-        Newly added billing dimensions and usage types appear as untyped keys on the
-        ``additionalProperties`` map instead of as typed fields. Call
-        ``GET /api/v2/usage/summary/available_fields`` to enumerate every key returned
-        at this response level—both typed fields and ``additionalProperties`` keys.
+        For SDK users only: all fields at this response level are accessible through the
+        ``additionalProperties`` map. Existing typed-field getters are unchanged. New billing
+        dimensions will not have typed-field getters. Use
+        `Get available fields for usage summary <https://docs.datadoghq.com/api/latest/usage-metering/#get-usage-summary-available-fields>`_
+        to enumerate every available key.
 
         :param agent_host_top99p: Shows the 99th percentile of all agent hosts over all hours in the current date for all organizations.
         :type agent_host_top99p: int, optional

src/datadog_api_client/v1/model/usage_summary_date_org.py

@@ -954,10 +954,11 @@ def __init__(
         """
         Global hourly report of all data billed by Datadog for a given organization.
 
-        Newly added billing dimensions and usage types appear as untyped keys on the
-        ``additionalProperties`` map instead of as typed fields. Call
-        ``GET /api/v2/usage/summary/available_fields`` to enumerate every key returned
-        at this response level—both typed fields and ``additionalProperties`` keys.
+        For SDK users only: all fields at this response level are accessible through the
+        ``additionalProperties`` map. Existing typed-field getters are unchanged. New billing
+        dimensions will not have typed-field getters. Use
+        `Get available fields for usage summary <https://docs.datadoghq.com/api/latest/usage-metering/#get-usage-summary-available-fields>`_
+        to enumerate every available key.
 
         :param account_name: The account name.
         :type account_name: str, optional

src/datadog_api_client/v1/model/usage_summary_response.py

@@ -979,10 +979,11 @@ def __init__(
         Response summarizing all usage aggregated across the months in the request for
         all organizations, and broken down by month and by organization.
 
-        Newly added billing dimensions and usage types appear as untyped keys on the
-        ``additionalProperties`` map instead of as typed fields. Call
-        ``GET /api/v2/usage/summary/available_fields`` to enumerate every key returned
-        at this response level—both typed fields and ``additionalProperties`` keys.
+        For SDK users only: all fields at this response level are accessible through the
+        ``additionalProperties`` map. Existing typed-field getters are unchanged. New billing
+        dimensions will not have typed-field getters. Use
+        `Get available fields for usage summary <https://docs.datadoghq.com/api/latest/usage-metering/#get-usage-summary-available-fields>`_
+        to enumerate every available key.
 
         :param agent_host_top99p_sum: Shows the 99th percentile of all agent hosts over all hours in the current month for all organizations.
         :type agent_host_top99p_sum: int, optional

src/datadog_api_client/v2/api/usage_metering_api.py

@@ -941,6 +941,37 @@ def get_usage_summary_available_fields(
 
         This endpoint is only accessible for `parent-level organizations <https://docs.datadoghq.com/account_management/multi_organization/>`_.
 
+        Go example:
+
+        .. code-block:: go
+
+           fields, _, err := api.GetUsageSummaryAvailableFields(ctx)
+           attr := fields.Data.GetAttributes()
+
+           // resp is the *UsageSummaryResponse returned by api.GetUsageSummary(ctx, ...)
+           // Layer 1: UsageSummaryResponse
+           for _, key := range attr.GetResponseFields() {
+               if val, ok := resp.AdditionalProperties[key]; ok {
+                   fmt.Println(key, val.(json.Number))
+               }
+           }
+           // Layer 2: UsageSummaryDate (per month)
+           for _, date := range resp.GetUsage() {
+               for _, key := range attr.GetDateFields() {
+                   if val, ok := date.AdditionalProperties[key]; ok {
+                       fmt.Println(key, val.(json.Number))
+                   }
+               }
+               // Layer 3: UsageSummaryDateOrg (per org per month)
+               for _, org := range date.GetOrgs() {
+                   for _, key := range attr.GetDateOrgFields() {
+                       if val, ok := org.AdditionalProperties[key]; ok {
+                           fmt.Println(key, val.(json.Number))
+                       }
+                   }
+               }
+           }
+
         :rtype: UsageSummaryAvailableFieldsResponse
         """
         kwargs: Dict[str, Any] = {}