# 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/fcda9320ff067c3d3857e9e3d088fc1eb0643fc4/python/langsmith/pytest_plugin.py#L294)