# Missing

> **Class** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/_openapi_client/types/missing/Missing)

## Signature

```python
Missing()
```

## Extends

- `BaseModel`

## Properties

- `api_missing`

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/52e79add98f6559235d1eb00f5f533b9be6d4cf6/python/langsmith/_openapi_client/types/missing.py#L12)