# FeedbackSourceBase

> **Class** in `langsmith`

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

Base class for feedback sources.

This represents whether feedback is submitted from the API, model, human labeler,
    etc.

## Signature

```python
FeedbackSourceBase()
```

## Extends

- `BaseModel`

## Properties

- `type`
- `metadata`
- `user_id`
- `user_name`

---

[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/19dc497a3d89638e4cc35db72ea1c29cad35cbbf/python/langsmith/schemas.py#L577)