performance-opensearch-async-async-operations-on-opensearchvectorclient-or-open-785bcab1

THEN Implement async versions of OpensearchVectorClient and OpensearchVectorStore by creating Async subclasses that use AsyncOpenSearch from opensearch-py and override query methods with async/await. Alternatively, monkeypatch the `_get_opensearch_client()` function to return an AsyncOpenSearch instance.

class AsyncOpensearchVectorClient(OpensearchVectorClient):
    async def aquery(self, query: VectorStoreQuery) -> VectorStoreQueryResult:
        # same logic as synchronous but with async/await
        ...