docs: def get_grade_system_ids_by_gradebooks(self, gradebook_ids):
          """Gets the list of ``GradeSystem Ids`` corresponding to a list of ``Gradebooks``.
  
          arg:    gradebook_ids (osid.id.IdList): list of gradebook
                  ``Ids``
          return: (osid.id.IdList) - list of grade systems ``Ids``
          raise:  NullArgument - ``gradebook_ids`` is ``null``
          raise:  OperationFailed - unable to complete request
          raise:  PermissionDenied - authorization failure
          *compliance: mandatory -- This method must be implemented.*
  
          """
          # Implemented from template for
          # osid.resource.ResourceBinSession.get_resource_ids_by_bins
          id_list = []
          for grade_system in self.get_grade_systems_by_gradebooks(gradebook_ids):
              id_list.append(grade_system.get_id())
          return IdList(id_list)