# LangChainPendingDeprecationWarning

> **Class** in `langchain_core`

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

A class for issuing deprecation warnings for LangChain users.

## Signature

```python
LangChainPendingDeprecationWarning()
```

## Extends

- `PendingDeprecationWarning`

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/02991cb4cf2063d51a07268edafb05fe53de1826/libs/core/langchain_core/_api/deprecation.py#L55)