# validate_f_string_template

> **Function** in `langchain_core`

📖 [View in docs](https://reference.langchain.com/python/langchain-core/prompts/string/validate_f_string_template)

Validate an f-string template and return its input variables.

## Signature

```python
validate_f_string_template(
    template: str,
) -> list[str]
```

---

[View source on GitHub](https://github.com/langchain-ai/langchain/blob/f0c5a28fa05adcda89aebcb449d897245ab21fa4/libs/core/langchain_core/prompts/string.py#L230)