# apply_checkpointer_allowlist

> **Function** in `langgraph`

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

## Signature

```python
apply_checkpointer_allowlist(
    checkpointer: Any,
    allowlist: set[tuple[str, ...]] | None,
) -> Any
```

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[View source on GitHub](https://github.com/langchain-ai/langgraph/blob/eae916719fe78de2900bb7cd45c212fffd64f88b/libs/langgraph/langgraph/_internal/_serde.py#L43)