# get_langchain_env_var_metadata

> **Function** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/env/_runtime_env/get_langchain_env_var_metadata)

Retrieve the langchain environment variables.

## Signature

```python
get_langchain_env_var_metadata() -> dict
```

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/cc54cc2729bb1cfe402fd9f34cf953de60bde30c/python/langsmith/env/_runtime_env.py#L170)