# get_updated_channels_from_tasks

> **Function** in `langgraph`

📖 [View in docs](https://reference.langchain.com/python/langgraph/pregel/_checkpoint/get_updated_channels_from_tasks)

Channel names written by an update_state superstep (excluding PUSH).

## Signature

```python
get_updated_channels_from_tasks(
    run_tasks: Iterable[Any],
) -> set[str]
```

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[View source on GitHub](https://github.com/langchain-ai/langgraph/blob/70dd64065bffaa3b6ab61a33f1f020fb54db8efa/libs/langgraph/langgraph/pregel/_checkpoint.py#L93)