def _extract_field_schema_pv2()

in src/anthropic/_models.py [0:0]

• 15 lines of code
• 5 McCabe index (conditional complexity)

def _extract_field_schema_pv2(model: type[BaseModel], field_name: str) -> ModelField | None:
    schema = model.__pydantic_core_schema__
    if schema["type"] == "definitions":
        schema = schema["schema"]

    if schema["type"] != "model":
        return None

    schema = cast("ModelSchema", schema)
    fields_schema = schema["schema"]
    if fields_schema["type"] != "model-fields":
        return None

    fields_schema = cast("ModelFieldsSchema", fields_schema)
    field = fields_schema["fields"].get(field_name)
    if not field:
        return None

    return cast("ModelField", field)  # pyright: ignore[reportUnnecessaryCast]