@abc.abstractmethod<EOL><INDENT>def get_id_batch_manager(self):<DEDENT>
return<EOL>
Gets an ``IdBatchManager``.

        :return: an ``IdBatchManager``
        :rtype: ``osid.id.batch.IdBatchManager``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``Unimplemented`` -- ``supports_id_batch()`` is ``false``

        *compliance: optional -- This method must be implemented if
        ``supports_id_batch()`` is ``true``.*