def METHOD_NAME(self, task_id: str, filename: str, *, status_check_period: int = 2) -> None:
    """Download a task backup"""
    self.client.tasks.retrieve(obj_id=task_id).download_backup(
        filename=filename,
        status_check_period=status_check_period,
        pbar=DeferredTqdmProgressReporter(),
    )