# validate_extracted_usage_metadata

> **Function** in `langsmith`

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

Validate that the dict only contains allowed keys.

## Signature

```python
validate_extracted_usage_metadata(
    data: ls_schemas.ExtractedUsageMetadata,
) -> ls_schemas.ExtractedUsageMetadata
```

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/19dc497a3d89638e4cc35db72ea1c29cad35cbbf/python/langsmith/run_trees.py#L201)