How to use the yamale.validators function in yamale

path,
                                                  strict)

        errors = []
        # Optional field with optional value? Who cares.
        if (data is None and
                validator.is_optional and
                validator.can_be_none):
            return errors

        errors += self._validate_primitive(validator, data, path)

        if errors:
            return errors

        if isinstance(validator, val.Include):
            errors += self._validate_include(validator, data, path, strict)

        elif isinstance(validator, (val.Map, val.List)):
            errors += self._validate_map_list(validator, data, path, strict)

        elif isinstance(validator, val.Any):
            errors += self._validate_any(validator, data, path, strict)

        return errors

errors = []
        # Optional field with optional value? Who cares.
        if (data is None and
                validator.is_optional and
                validator.can_be_none):
            return errors

        errors += self._validate_primitive(validator, data, path)

        if errors:
            return errors

        if isinstance(validator, val.Include):
            errors += self._validate_include(validator, data, path, strict)

        elif isinstance(validator, (val.Map, val.List)):
            errors += self._validate_map_list(validator, data, path, strict)

        elif isinstance(validator, val.Any):
            errors += self._validate_any(validator, data, path, strict)

        return errors

validator.is_optional and
                validator.can_be_none):
            return errors

        errors += self._validate_primitive(validator, data, path)

        if errors:
            return errors

        if isinstance(validator, val.Include):
            errors += self._validate_include(validator, data, path, strict)

        elif isinstance(validator, (val.Map, val.List)):
            errors += self._validate_map_list(validator, data, path, strict)

        elif isinstance(validator, val.Any):
            errors += self._validate_any(validator, data, path, strict)

        return errors