# assert_signatures_in_sync

> **Function** in `langsmith`

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

Ensure that the signature of the second function matches the first.

## Signature

```python
assert_signatures_in_sync(
    source_func: Callable[..., Any],
    check_func: Callable[..., Any],
    *,
    exclude_params: set[str] = set(),
) -> None
```

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/d6cd6082f09e7826a2d6afe444ae6119e61b82a6/python/langsmith/_openapi_client/_utils/_reflection.py#L13)