importasyncioclassMyException(Exception):passasyncdefasync_fn():awaitasyncio.sleep(0)raiseMyExceptionasyncdefmain():task=asyncio.current_task()try:asyncwithasyncio.TaskGroup()astg:tg.create_task(async_fn())try:awaitasyncio.sleep(1)exceptasyncio.CancelledError:pass    except*MyException:print("done!")print(f"{task.cancelling()=} should be 0")asyncio.run(main())