Mark usage metering field lines_indexed as nullable (#1521)

Co-authored-by: ci.datadog-api-spec <[email protected]>

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

.apigentools-info

@@ -4,13 +4,13 @@
     "spec_versions": {
         "v1": {
             "apigentools_version": "1.6.4",
-            "regenerated": "2023-06-14 09:53:27.834820",
-            "spec_repo_commit": "e0974b9b"
+            "regenerated": "2023-06-14 14:30:34.005418",
+            "spec_repo_commit": "23362011"
         },
         "v2": {
             "apigentools_version": "1.6.4",
-            "regenerated": "2023-06-14 09:53:27.851959",
-            "spec_repo_commit": "e0974b9b"
+            "regenerated": "2023-06-14 14:30:34.017315",
+            "spec_repo_commit": "23362011"
         }
     }
 }

.generator/schemas/v1/openapi.yaml

@@ -15982,6 +15982,7 @@ components:
           description: The total number of audit logs lines indexed during a given
             hour.
           format: int64
+          nullable: true
           type: integer
         org_name:
           description: The organization name.

src/datadog_api_client/v1/model/usage_audit_logs_hour.py

@@ -9,6 +9,7 @@
     ModelNormal,
     cached_property,
     datetime,
+    none_type,
     unset,
     UnsetType,
 )
@@ -19,7 +20,7 @@ class UsageAuditLogsHour(ModelNormal):
     def openapi_types(_):
         return {
             "hour": (datetime,),
-            "lines_indexed": (int,),
+            "lines_indexed": (int, none_type),
             "org_name": (str,),
             "public_id": (str,),
         }
@@ -34,7 +35,7 @@ def openapi_types(_):
     def __init__(
         self_,
         hour: Union[datetime, UnsetType] = unset,
-        lines_indexed: Union[int, UnsetType] = unset,
+        lines_indexed: Union[int, none_type, UnsetType] = unset,
         org_name: Union[str, UnsetType] = unset,
         public_id: Union[str, UnsetType] = unset,
         **kwargs,
@@ -46,7 +47,7 @@ def __init__(
         :type hour: datetime, optional
 
         :param lines_indexed: The total number of audit logs lines indexed during a given hour.
-        :type lines_indexed: int, optional
+        :type lines_indexed: int, none_type, optional
 
         :param org_name: The organization name.
         :type org_name: str, optional