# create_field

> **Function** in `langchain_sema4`

📖 [View in docs](https://reference.langchain.com/python/langchain-sema4/_common/create_field)

Creates a Pydantic field based on the schema definition.

## Signature

```python
create_field(
    schema: dict,
    required: bool,
    created_model_names: Set[str],
) -> Tuple[Any, Any]
```

---

[View source on GitHub](https://github.com/langchain-ai/langchain-sema4/blob/14caa588ea60d411598f096d0734099bedcca0dd/libs/sema4/langchain_sema4/_common.py#L97)