# surface_langchain_deprecation_warnings

> **Function** in `langchain_core`

📖 [View in docs](https://reference.langchain.com/python/langchain-core/_api/deprecation/surface_langchain_deprecation_warnings)

Unmute LangChain deprecation warnings.

## Signature

```python
surface_langchain_deprecation_warnings() -> None
```

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/b302691ff9ad841804e93e5addbdc53b6974473b/libs/core/langchain_core/_api/deprecation.py#L538)