def get_authorization_batch_manager(self):
raise Unimplemented()<EOL>
Gets an ``AuthorizationBatchManager``.

        return: (osid.authorization.batch.AuthorizationBatchManager) -
                an ``AuthorizationBatchManager``
        raise:  OperationFailed - unable to complete request
        raise:  Unimplemented - ``supports_authorization_batch() is
                false``
        *compliance: optional -- This method must be implemented if
        ``supports_authorization_batch()`` is true.*