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chat_history = FirestoreChatMessageHistory(session_id = SESSION_ID,
                                        collection = COLLECTION_NAME,
                                        client=client
                                        )

when it tried to invoke FirestoreChatMessageHistory, it gives timeout error:

raise exceptions.from_grpc_error(exc) from exc
google.api_core.exceptions.ServiceUnavailable: 503 Getting metadata from plugin failed with error: ('Unable to acquire impersonated credentials', '{\n  "error": {\n    "code": 404,\n    "message": "Not found; Gaia id not found for email bkp825301@gmail.com",\n    "status": "NOT_FOUND"\n  }\n}\n')