# AssistantMessage

> **Class** in `deepagents_cli`

📖 [View in docs](https://reference.langchain.com/python/deepagents-cli/widgets/messages/AssistantMessage)

Widget displaying an assistant message with markdown support.

Uses MarkdownStream for smoother streaming instead of re-rendering
the full content on each update.

## Signature

```python
AssistantMessage(
    self,
    content: str = '',
    **kwargs: Any = {},
)
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `content` | `str` | No | Initial markdown content (default: `''`) |
| `**kwargs` | `Any` | No | Additional arguments passed to parent (default: `{}`) |

## Extends

- `_TimestampClickMixin`
- `Vertical`

## Constructors

```python
__init__(
    self,
    content: str = '',
    **kwargs: Any = {},
) -> None
```

| Name | Type |
|------|------|
| `content` | `str` |


## Properties

- `DEFAULT_CSS`

## Methods

- [`compose()`](https://reference.langchain.com/python/deepagents-cli/widgets/messages/AssistantMessage/compose)
- [`on_mount()`](https://reference.langchain.com/python/deepagents-cli/widgets/messages/AssistantMessage/on_mount)
- [`append_content()`](https://reference.langchain.com/python/deepagents-cli/widgets/messages/AssistantMessage/append_content)
- [`write_initial_content()`](https://reference.langchain.com/python/deepagents-cli/widgets/messages/AssistantMessage/write_initial_content)
- [`stop_stream()`](https://reference.langchain.com/python/deepagents-cli/widgets/messages/AssistantMessage/stop_stream)
- [`set_content()`](https://reference.langchain.com/python/deepagents-cli/widgets/messages/AssistantMessage/set_content)

---

[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/bb27e62ebe44dd6e8104a504b1718ce87acc7ffa/libs/cli/deepagents_cli/widgets/messages.py#L574)