# collect_allowlist_from_schemas

> **Function** in `langgraph`

📖 [View in docs](https://reference.langchain.com/python/langgraph/_internal/_serde/collect_allowlist_from_schemas)

## Signature

```python
collect_allowlist_from_schemas(
    *,
    schemas: list[type[Any]] | None = None,
    channels: dict[str, Any] | None = None,
) -> set[tuple[str, ...]]
```

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[View source on GitHub](https://github.com/langchain-ai/langgraph/blob/d27d4b2d9895a4aa83170b4aaa135878f99c7fd6/libs/langgraph/langgraph/_internal/_serde.py#L101)