Husum, harumitsu.nobuta, Henry Spivey, hsm207, Jekyll Song, Jerome, Jiongyan
Zhang, jjsjann123, John Sungjin Park, Johnson145, JoshVarty, Julian Wolff, Jun
Wang, June-One, Kamil Sindi, Kb Sriram, Kdavis-Mozilla, Kenji, lazypanda1,
Liang-Chi Hsieh, Loo Rong Jie, Mahesh Bhosale, MandarJKulkarni, ManHyuk, Marcus
Ong, Marshal Hayes, Martin Pool, matthieudelaro, mdfaijul, mholzel, Michael

   * To differentiate the two cases we ping the server when a stream times out. If the overall
   * connection is fine the ping will receive a pong; otherwise it won't.
   *
   * The deadline to respond to this ping attempts to limit the cost of being wrong. If it is too
   * long, streams created while we await the pong will reuse broken connections and inevitably
   * fail. If it is too short, slow connections will be marked as failed and extra TCP and TLS

    // At 0ms the server sends 3 unexpected pongs. The client accepts 'em and ignores em.
    server.webSocket!!.pong("pong 1".encodeUtf8())
    client.processNextFrame()
    server.webSocket!!.pong("pong 2".encodeUtf8())
    client.processNextFrame()
    taskFaker.runTasks()
    server.webSocket!!.pong("pong 3".encodeUtf8())
    client.processNextFrame()

    Nó đã được cài đặt sẵng cùng với **FastAPI**.

    ```Python hl_lines="1  4"
    {!> ../../../docs_src/python_types/tutorial013.py!}
    ```

Python bản thân nó không làm bất kì điều gì với `Annotated`. Với các trình soạn thảo và các công cụ khác, kiểu dữ liệu vẫn là `str`.

Nhưng bạn có thể sử dụng `Annotated` để cung cấp cho **FastAPI** metadata bổ sung về cách mà bạn muốn ứng dụng của bạn xử lí.

Il prend comme valeur un `dict` dont les clés sont des codes HTTP pour chaque réponse, comme `200`, et la valeur de ces clés sont d'autres `dict` avec des informations pour chacun d'eux.

Chacun de ces `dict` de réponse peut avoir une clé `model`, contenant un modèle Pydantic, tout comme `response_model`.

**FastAPI** prendra ce modèle, générera son schéma JSON et l'inclura au bon endroit dans OpenAPI.

  /**
   * Minimum outbound web socket message size (in bytes) that will be compressed.
   * The default is 1024 bytes.
   */
  @get:JvmName("minWebSocketMessageToCompress")
  val minWebSocketMessageToCompress: Long = builder.minWebSocketMessageToCompress

  internal val routeDatabase: RouteDatabase = builder.routeDatabase ?: RouteDatabase()
  internal val taskRunner: TaskRunner = builder.taskRunner ?: TaskRunner.INSTANCE

```

!!! info
    <a href="https://docs.python.org/3/library/enum.html" class="external-link" target="_blank">Les énumérations (ou enums) sont disponibles en Python</a> depuis la version 3.4.

!!! tip "Astuce"
    Pour ceux qui se demandent, "AlexNet", "ResNet", et "LeNet" sont juste des noms de <abbr title="Techniquement, des architectures de modèles">modèles</abbr> de Machine Learning.

### Déclarer un paramètre de chemin

    @Override
    public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException {
      long nanos = unit.toNanos(timeout);
      synchronized (lock) {
        while (true) {
          if (shutdown && runningTasks == 0) {
            return true;
          } else if (nanos <= 0) {
            return false;
          } else {
            long now = System.nanoTime();

      // attributes are declared in the cookie string.
      if (deltaSeconds == Long.MIN_VALUE) {
        expiresAt = Long.MIN_VALUE
      } else if (deltaSeconds != -1L) {
        val deltaMilliseconds =
          if (deltaSeconds <= Long.MAX_VALUE / 1000) {
            deltaSeconds * 1000
          } else {
            Long.MAX_VALUE
          }
        expiresAt = currentTimeMillis + deltaMilliseconds

    final int characteristics() {
      return spliterator.characteristics();
    }

    final long estimateSize() {
      return spliterator.estimateSize();
    }

    final Comparator<? super E> getComparator() {
      return spliterator.getComparator();
    }

    final long getExactSizeIfKnown() {
      return spliterator.getExactSizeIfKnown();
    }