def copy_selected_validators_type(
        cls, model: Type[pydantic.BaseModel], fields: List[str], validator_type: str
    ) -> None:
        """
        Copy field validators from ormar model to generated pydantic model.
        """
        validators = getattr(cls.__pydantic_decorators__, validator_type)
        for name, decorator in validators.items():
            if any(field_name in decorator.info.fields for field_name in fields):
                copied_decorator = copy.deepcopy(decorator)
                copied_decorator.info.fields = [
                    field_name
                    for field_name in decorator.info.fields
                    if field_name in fields
                ]
                getattr(model.__pydantic_decorators__, validator_type)[
                    name
                ] = copied_decorator

        Copy field validators from ormar model to generated pydantic model.
        
ormar/models/mixins/pydantic_mixin.py