code: def date_added(self, date_added):
          
          date_added = self._utils.format_datetime(date_added, date_format='%Y-%m-%dT%H:%M:%SZ')
  
          self._data['dateAdded'] = date_added
          request = self._base_request
          request['dateAdded'] = date_added
          return self._tc_requests.update(request, owner=self.owner)
docs: Updates the security labels date_added
  
          Args:
              date_added: Converted to %Y-%m-%dT%H:%M:%SZ date format