# StrEnum

> **Class** in `langchain_core`

📖 [View in docs](https://reference.langchain.com/python/langchain-core/runnables/configurable/StrEnum)

String enum.

## Signature

```python
StrEnum()
```

## Extends

- `str`
- `enum.Enum`

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/fb6ab993a73180538f6cca876b3c85d46c08845f/libs/core/langchain_core/runnables/configurable.py#L463)