# message_additional_kwargs

> **Function** in `deepagents_code`

📖 [View in docs](https://reference.langchain.com/python/deepagents-code/goal_state_notice/message_additional_kwargs)

Return message metadata from a local or serialized message.

## Signature

```python
message_additional_kwargs(
    message: object,
) -> Mapping[str, object]
```

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[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/4bfa52000ef65ac623d8ada0cb67f67cbdd663ea/libs/code/deepagents_code/goal_state_notice.py#L173)