Add missing async_astra_db_client param to AstraDBChatMessageHistory

libs/community/langchain_community/chat_message_histories/astradb.py

@@ -11,7 +11,7 @@
 )
 
 if TYPE_CHECKING:
-    from astrapy.db import AstraDB
+    from astrapy.db import AstraDB, AsyncAstraDB
 
 from langchain_core.chat_history import BaseChatMessageHistory
 from langchain_core.messages import (
@@ -35,6 +35,8 @@ class AstraDBChatMessageHistory(BaseChatMessageHistory):
             such as "https://<DB-ID>-us-east1.apps.astra.datastax.com".
         astra_db_client (Optional[Any]): *alternative to token+api_endpoint*,
             you can pass an already-created 'astrapy.db.AstraDB' instance.
+        async_astra_db_client: *alternative to token+api_endpoint*,
+            you can pass an already-created 'astrapy.db.AsyncAstraDB' instance.
         namespace (Optional[str]): namespace (aka keyspace) where the
             collection is created. Defaults to the database's "default namespace".
     """
@@ -47,6 +49,7 @@ def __init__(
         token: Optional[str] = None,
         api_endpoint: Optional[str] = None,
         astra_db_client: Optional[AstraDB] = None,
+        async_astra_db_client: Optional[AsyncAstraDB] = None,
         namespace: Optional[str] = None,
         setup_mode: SetupMode = SetupMode.SYNC,
         pre_delete_collection: bool = False,
@@ -57,6 +60,7 @@ def __init__(
             token=token,
             api_endpoint=api_endpoint,
             astra_db_client=astra_db_client,
+            async_astra_db_client=async_astra_db_client,
             namespace=namespace,
             setup_mode=setup_mode,
             pre_delete_collection=pre_delete_collection,