Function create_patch_model

tests/test_fields.py:406–412

(cls: type[BaseModel])

    """

    def create_patch_model(cls: type[BaseModel]) -> type[BaseModel]:
        fields = {}
        for field_name, field in cls.model_fields.items():
            field_copy = copy.deepcopy(field)
            field_copy.default = None
            fields[field_name] = (field.annotation, field_copy)
        return create_model(f'Patch{cls.__name__}', **fields)

    class Model(BaseModel):
        a: Annotated[int, Field(gt=2)]