@utilities.arguments_not_none<EOL><INDENT>def get_gradebook_ids_by_gradebook_column(self, gradebook_column_id):<DEDENT>
<EOL>mgr = self._get_provider_manager('<STR_LIT>', local=True)<EOL>lookup_session = mgr.get_gradebook_column_lookup_session(proxy=self._proxy)<EOL>lookup_session.use_federated_gradebook_view()<EOL>gradebook_column = lookup_session.get_gradebook_column(gradebook_column_id)<EOL>id_list = []<EOL>for idstr in gradebook_column._my_map['<STR_LIT>']:<EOL><INDENT>id_list.append(Id(idstr))<EOL><DEDENT>return IdList(id_list)<EOL>
Gets the list of ``Gradebook``  ``Ids`` mapped to a ``GradebookColumn``.

        arg:    gradebook_column_id (osid.id.Id): ``Id`` of a
                ``GradebookColumn``
        return: (osid.id.IdList) - list of gradebook ``Ids``
        raise:  NotFound - ``gradebook_column_id`` is not found
        raise:  NullArgument - ``gradebook_column_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*