[MongoDBs MotorClient](https://stackoverflow.com/questions/41584243/runtimeerror-task-attached-to-a-different-loop)), dann denken Sie daran, Objekte zu instanziieren, die einen Event Loop nur innerhalb asynchroner Funktionen benötigen, z. B. einen `@app.on_event("startup")`-Callback.

///...

your tests (e.g. when using [MongoDB's MotorClient](https://stackoverflow.com/questions/41584243/runtimeerror-task-attached-to-a-different-loop)), remember to instantiate objects that need an event loop only within async functions, e.g. an `@app.on_event("startup")` callback.

///...

[MotorClient do MongoDB](https://stackoverflow.com/questions/41584243/runtimeerror-task-attached-to-a-different-loop)) Lembre-se de instanciar objetos que precisam de um loop de eventos (*event loop*) apenas em funções assíncronas, e.g. um callback `@app.on_event("startup")`.

///...

如果您在测试程序中集成异步函数调用的时候遇到一个 `RuntimeError: Task attached to a different loop` 的报错（例如，使用 [MongoDB 的 MotorClient](https://stackoverflow.com/questions/41584243/runtimeerror-task-attached-to-a-different-loop) 时），请记住，只能在异步函数中实例化需要事件循环的对象，例如在 `@app.on_event("startup")` 回调中初始化。

/// tip

如果在將非同步呼叫整合進測試時遇到 `RuntimeError: Task attached to a different loop`（例如使用 [MongoDB 的 MotorClient](https://stackoverflow.com/questions/41584243/runtimeerror-task-attached-to-a-different-loop) 時），請記得：需要事件迴圈的物件只應在非同步函式內實例化，例如在 `@app.on_event("startup")` 回呼中。

[MongoDB의 MotorClient](https://stackoverflow.com/questions/41584243/runtimeerror-task-attached-to-a-different-loop)를 사용할 때) `RuntimeError: Task attached to a different loop`를 마주친다면, 이벤트 루프가 필요한 객체는 async 함수 안에서만 인스턴스화해야 한다는 점을 기억하세요. 예를 들어 `@app.on_event("startup")` 콜백에서 인스턴스화할 수 있습니다.

///...

た際に（例: [MongoDB の MotorClient](https://stackoverflow.com/questions/41584243/runtimeerror-task-attached-to-a-different-loop) 使用時）、`RuntimeError: Task attached to a different loop` に遭遇した場合は、イベントループを必要とするオブジェクトは非同期関数内でのみインスタンス化するようにしてください。例えば `@app.on_event("startup")` コールバック内で行います。

///...

        return decorator

    @deprecated(
        """
        on_event is deprecated, use lifespan event handlers instead.

        Read more about it in the
        [FastAPI docs for Lifespan Events](https://fastapi.tiangolo.com/advanced/events/).
        """
    )
    def on_event(
        self,
        event_type: Annotated[
            str,
            Doc(

            self.on_shutdown.append(func)

    @deprecated(
        """
        on_event is deprecated, use lifespan event handlers instead.

        Read more about it in the
        [FastAPI docs for Lifespan Events](https://fastapi.tiangolo.com/advanced/events/).
        """
    )
    def on_event(
        self,
        event_type: Annotated[
            str,
            Doc(

wriggling down from the sky!  Ugh, Serpent!'

  `But I'm NOT a serpent, I tell you!' said Alice.  `I'm a--I'm
a--'

  `Well!  WHAT are you?' said the Pigeon.  `I can see you're
trying to invent something!'

  `I--I'm a little girl,' said Alice, rather doubtfully, as she
remembered the number of changes she had gone through that day.

  `A likely story indeed!' said the Pigeon in a tone of the