code: def delete_list_members(self, list_, query_column, ids_to_delete):
          
          list_ = list_.get_soap_object(self.client)
          result = self.call('deleteListMembers', list_, query_column, ids_to_delete)
          if hasattr(result, '__iter__'):
              return [DeleteResult(delete_result) for delete_result in result]
          return [DeleteResult(result)]
docs: Responsys.deleteListMembers call
  
          Accepts:
              InteractObject list_
              string query_column
                  possible values: 'RIID'|'EMAIL_ADDRESS'|'CUSTOMER_ID'|'MOBILE_NUMBER'
              list ids_to_delete
  
          Returns a list of DeleteResult instances