# is_annotated_type

> **Function** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/_openapi_client/_utils/_typing/is_annotated_type)

## Signature

```python
is_annotated_type(
    typ: type,
) -> bool
```

---

[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/d6cd6082f09e7826a2d6afe444ae6119e61b82a6/python/langsmith/_openapi_client/_utils/_typing.py#L21)