# run_sse_stream_async

> **Function** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/sandbox/_sse_execute/run_sse_stream_async)

Async equivalent of :func:`run_sse_stream`.

## Signature

```python
run_sse_stream_async(
    http: httpx.AsyncClient,
    dataplane_url: str,
    payload: dict[str, Any],
    *,
    headers: Optional[Mapping[str, str]] = None,
) -> tuple[AsyncIterator[dict], _AsyncSSEStreamControl]
```

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/19d52419f47c93ca2c57a0d51c58d255f5949092/python/langsmith/sandbox/_sse_execute.py#L594)