pw.println("                                 kiwi, mango");

        java.util.Properties p = new java.util.Properties();
        p.load(new StringReader(sw.toString()));
        Object o24 = p.getProperty("fruits");
        assertEquals("apple, banana, pear, cantaloupe, watermelon, kiwi, mango", o24);

        MavenProperties props = new MavenProperties();

```

////

Betrachten wir die deklarierten Parameter:

* Obwohl diese Funktion selbst eine Abhängigkeit ist („Dependable“, etwas hängt von ihr ab), deklariert sie auch eine andere Abhängigkeit („Dependant“, sie hängt von etwas anderem ab).
    * Sie hängt von `query_extractor` ab und weist den von diesem zurückgegebenen Wert dem Parameter `q` zu.
* Sie deklariert außerdem ein optionales `last_query`-Cookie, ein `str`.

          TimeoutsToUse.FINITE,
          isBoolean(method) ? Outcome.FAILURE : Outcome.HANG);
      addTests(
          suite,
          method,
          Scenario.SATISFIED_AND_OCCUPIED_BEFORE_ENTERING,
          TimeoutsToUse.INFINITE,
          isGuarded(method) ? Outcome.HANG : (isTryEnter(method) ? Outcome.FAILURE : Outcome.HANG));
      addTests(
          suite,
          method,

   * @param terminationTimeout how long to wait for the executor to finish before terminating the
   *     JVM
   * @return an unmodifiable version of the input which will not hang the JVM
   * @since 28.0 (but only since 33.4.0 in the Android flavor)
   */
  @J2ktIncompatible
  @GwtIncompatible // TODO
  public static ExecutorService getExitingExecutorService(

     * this is no worse than what FutureTask does in that situation. Additionally, because the
     * Future was cancelled, its listeners have been run, so its consumers will not hang.
     *
     * Contrast this to the situation we have if setResult() throws, a situation described below.
     */
    I sourceResult;
    try {
      sourceResult = getDone(localInputFuture);

///

Das einzig Neue ist `callbacks=invoices_callback_router.routes` als Argument für den *Pfadoperation-Dekorator*. Wir werden als Nächstes sehen, was das ist.

## Dokumentation des Callbacks

Der tatsächliche Callback-Code hängt stark von Ihrer eigenen API-Anwendung ab.

Und er wird wahrscheinlich von Anwendung zu Anwendung sehr unterschiedlich sein.

Es könnten nur eine oder zwei Codezeilen sein, wie zum Beispiel:

```Python

   * protect ourselves from that we want to make sure that tasks don't spin too much waiting for the
   * interrupting thread to complete the protocol.
   */
  /*
   * This test hangs (or maybe is just *very* slow) under Android.
   *
   * TODO(b/218700094): Ideally, get this to pass under Android. Failing that, convince ourselves

	config.Net.TLS.Config.ClientAuth = args.TLS.ClientAuth
	config.Net.TLS.Config.RootCAs = args.TLS.RootCAs

	// These settings are needed to ensure that kafka client doesn't hang on brokers
	// refer https://github.com/IBM/sarama/issues/765#issuecomment-254333355
	config.Producer.Retry.Max = 2
	config.Producer.Retry.Backoff = (1 * time.Second)
	config.Producer.Return.Successes = true

	sconfig.Net.TLS.Config.ClientAuth = h.kconfig.TLS.ClientAuth
	sconfig.Net.TLS.Config.RootCAs = h.kconfig.TLS.RootCAs

	// These settings are needed to ensure that kafka client doesn't hang on brokers
	// refer https://github.com/IBM/sarama/issues/765#issuecomment-254333355
	sconfig.Producer.Retry.Max = 2
	sconfig.Producer.Retry.Backoff = (10 * time.Second)
	sconfig.Producer.Return.Successes = true

                            "application/json": {



...
```

#### OpenAPI dùng để làm gì?

Cấu trúc OpenAPI là sức mạnh của tài liệu tương tác.

Và có hàng tá các bản thay thế, tất cả đều dựa trên OpenAPI. Bạn có thể dễ dàng thêm bất kì bản thay thế bào cho ứng dụng của bạn được xây dựng với **FastAPI**.