def get_authorization_batch_proxy_manager(self):
raise errors.Unimplemented()<EOL>
Gets an ``AuthorizationBatchProxyManager``.

        return:
                (osid.authorization.batch.AuthorizationBatchProxyManager
                ) - an ``AuthorizationBatchProxyManager``
        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.*