def get_repository_batch_proxy_manager(self, proxy):
raise Unimplemented()<EOL>
Gets a RepositoryBatchManager.

        arg     proxy (osid.proxy.Proxy): a proxy
        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.