# chain_future

> **Function** in `langgraph`

📖 [View in docs](https://reference.langchain.com/python/langgraph/_internal/_future/chain_future)

## Signature

```python
chain_future(
    source: AnyFuture,
    destination: AnyFuture,
) -> AnyFuture
```

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[View source on GitHub](https://github.com/langchain-ai/langgraph/blob/b674dd46228b0928a6bc0ad9a3d8e38ef28f6895/libs/langgraph/langgraph/_internal/_future.py#L127)