code: def get_identities(self, item):
          
  
          item = item['data']
  
          for identity in ['creator']:
              # Todo: questions has also involved and solved_by
              if identity in item and item[identity]:
                  user = self.get_sh_identity(item[identity])
                  yield user
              if 'answers_data' in item:
                  for answer in item['answers_data']:
                      user = self.get_sh_identity(answer[identity])
                      yield user
docs: Return the identities from an item