# BaseMessageLike

> **Class** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/schemas/BaseMessageLike)

A protocol representing objects similar to BaseMessage.

## Signature

```python
BaseMessageLike()
```

## Extends

- `Protocol`

## Properties

- `content`
- `additional_kwargs`
- `type`

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/c2450d95237768ddd7e77a60f4939f164fca3e8d/python/langsmith/schemas.py#L798)