# default_cache_key

> **Function** in `langgraph`

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

Default cache key function that uses the arguments and keyword arguments to generate a hashable key.

## Signature

```python
default_cache_key(
    *args: Any = (),
    **kwargs: Any = {},
) -> str | bytes
```

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[View source on GitHub](https://github.com/langchain-ai/langgraph/blob/d27d4b2d9895a4aa83170b4aaa135878f99c7fd6/libs/langgraph/langgraph/_internal/_cache.py#L26)