# pytest_configure

> **Function** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/pytest_plugin/pytest_configure)

Register the 'langsmith' marker.

## Signature

```python
pytest_configure(
    config,
)
```

---

[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/d6cd6082f09e7826a2d6afe444ae6119e61b82a6/python/langsmith/pytest_plugin.py#L294)