def get_repository_batch_manager(self):
raise Unimplemented()<EOL>
Gets a RepositoryBatchManager.

        return: (osid.repository.batch.RepositoryBatchManager) - a
                RepostoryBatchManager
        raise:  OperationFailed - unable to complete request
        raise:  Unimplemented - supports_repository_batch() is false
        compliance: optional - This method must be implemented if
                    supports_repository_batch() is true.