# is_env_var_truish

> **Function** in `langsmith`

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

Check if the given environment variable is truish.

## Signature

```python
is_env_var_truish(
    value: Optional[str],
) -> bool
```

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/791701a304a72495d108669ef11c194983fd0e95/python/langsmith/utils.py#L393)