# Meta
`toloka.client.message_thread.MessageThread.Meta` | [Source code](https://github.com/Toloka/toloka-kit/blob/v0.1.26/src/client/message_thread.py#L116)

```python
Meta(
    self,
    *,
    pool_id: Optional[str] = None,
    project_id: Optional[str] = None,
    assignment_id: Optional[str] = None
)
```

