# is_async_callable

> **Function** in `langchain_core`

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

Check if a function is async.

## Signature

```python
is_async_callable(
    func: Any,
) -> TypeGuard[Callable[..., Awaitable[Any]]]
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `func` | `Any` | Yes | The function to check. |

## Returns

`TypeGuard[Callable[..., Awaitable[Any]]]`

`True` if the function is async, `False` otherwise.

---

[View source on GitHub](https://github.com/langchain-ai/langchain/blob/1c3a4186cf2ba4f28face59118ac7786de009f91/libs/core/langchain_core/runnables/utils.py#L768)