@abc.abstractmethod<EOL><INDENT>def get_repository_batch_manager(self):<DEDENT>
return<EOL>
Gets a ``RepositoryBatchManager``.

        :return: a ``RepostoryBatchManager``
        :rtype: ``osid.repository.batch.RepositoryBatchManager``
        :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``.*