code: def listDatasetParents(self, dataset=''):
          
          try:
              return self.dbsDataset.listDatasetParents(dataset)
          except dbsException as de:
              dbsExceptionHandler(de.eCode, de.message, self.logger.exception, de.serverError)
          except Exception as ex:
              sError = "DBSReaderModel/listDatasetParents. %s\n. Exception trace: \n %s" \
                      % (ex, traceback.format_exc())
              dbsExceptionHandler('dbsException-server-error', dbsExceptionCode['dbsException-server-error'], self.logger.exception, sError)
docs: API to list A datasets parents in DBS.
  
          :param dataset: dataset (Required)
          :type dataset: str
          :returns: List of dictionaries containing the following keys (this_dataset, parent_dataset_id, parent_dataset)
          :rtype: list of dicts