fix:return type

sdk/python/feast/infra/online_stores/contrib/cassandra_online_store/cassandra_online_store.py

@@ -20,7 +20,7 @@
 import asyncio
 import logging
 from datetime import datetime
-from typing import Any, Callable, Coroutine, Dict, List, Literal, Optional, Sequence, Tuple
+from typing import Any, Callable, Dict, List, Literal, Optional, Sequence, Tuple
 
 from cassandra.auth import PlainTextAuthProvider
 from cassandra.cluster import (
@@ -326,7 +326,7 @@ async def online_write_batch(
             Tuple[EntityKeyProto, Dict[str, ValueProto], datetime, Optional[datetime]]
         ],
         progress: Optional[Callable[[int], Any]],
-    ) -> Coroutine[Any, Any, None]:
+    ) -> None:
         """
         Write a batch of features of several entities to the database.