code: def add_attribute(self, attribute_type, attribute_value):
          
          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,
          )
docs: Adds a attribute to a Group/Indicator or Victim
  
  
          Args:
              attribute_type:
              attribute_value:
  
          Returns: attribute json