async def aget_keys(self) -> list[str]:
        """Async version of Get all keys."""
        async with self._async_session() as session:
            stmt = select(self._table_class.key)

            return (await session.execute(stmt)).scalars().all()
Async version of Get all keys.
llama-index-integrations/storage/chat_store/llama-index-storage-chat-store-postgres/llama_index/storage/chat_store/postgres/base.py