Fix tests

Change-Id: If8fbbba1966aa42601adec877e60d851d4f03b72

Author: MarkDaoust

google/generativeai/types/model_types.py

@@ -195,6 +195,7 @@ class TunedModel:
     create_time: datetime.datetime | None = None
     update_time: datetime.datetime | None = None
     tuning_task: TuningTask | None = None
+    reader_project_numbers: List[int] | None = None
 
     @property
     def permissions(self) -> permission_types.Permissions: