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AsyncBigQueryCallbackHandler( self, project_id: str, dataset_id: str, table_id: str | None
AsyncCallbackHandler
Block until queued rows have been written to BigQuery.
Useful between request boundaries when callers want to ensure each invocation's events are durable before returning to the user. Does NOT shut the handler down; subsequent events keep working.
Create an async context manager for graph execution.
Callback handler for logging LangChain events to Google BigQuery.
