code: def serialize(self, account, group, region):
          
          return self.dumps({
              'account': account,
              'detail': {
                  'request_parameters': {
                      'groupId': group['GroupId']
                  },
                  'region': region,
                  'collected': group
              }
          }).data
docs: Serializes the JSON for the Polling Event Model.
  
          :param account:
          :param group:
          :param region:
          :return: