def add_attribute(self, attribute_type, attribute_value):
        """
        Adds a attribute to a Group/Indicator or Victim


        Args:
            attribute_type:
            attribute_value:

        Returns: attribute json

        """
        if not self.can_update():
            self._tcex.handle_error(910, [self.type])

        return self.tc_requests.add_attribute(
            self.api_type,
            self.api_sub_type,
            self.unique_id,
            attribute_type,
            attribute_value,
            owner=self.owner,
        )