Mas `open()` não usa `async` e `await`.

Então, nós declaramos uma função de manipulação de evento com o padrão `def` ao invés de `async def`.

///

### `startup` e `shutdown` juntos

Há uma grande chance que a lógica para sua *inicialização* e *encerramento* esteja conectada, você pode querer iniciar alguma coisa e então finalizá-la, adquirir um recurso e então liberá-lo, etc.

   * class's static initializer can fall back on a non-Unsafe version.
   */
  @SuppressWarnings({"SunApi", "removal"}) // b/345822163
  private enum UnsafeByteArray implements LittleEndianBytes {
    // Do *not* change the order of these constants!
    UNSAFE_LITTLE_ENDIAN {
      @Override
      public long getLongLittleEndian(byte[] array, int offset) {
        return theUnsafe.getLong(array, (long) offset + BYTE_ARRAY_BASE_OFFSET);

But `open()` doesn't use `async` and `await`.

So, we declare the event handler function with standard `def` instead of `async def`.

///

### `startup` and `shutdown` together

There's a high chance that the logic for your *startup* and *shutdown* is connected, you might want to start something and then finish it, acquire a resource and then release it, etc.

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* Clique no botão "Try it out", ele permitirá que você preencha os parâmetros e interaja diretamente com a API:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

*   The admission webhook configurations API, part of the admissionregistration API, is now at v1beta1. Delete any existing webhook configurations before you upgrade, and update your configuration files to use the latest API. For this and the previous change, see also [the documentation](https://kubernetes.io/docs/admin/extensible-admission-controllers/#ext...

          }
          return oldValue;
        }
      } else {
        return 0;
      }
    }
  }

  /**
   * Removes exactly the specified number of occurrences of {@code element}, or makes no change if
   * this is not possible.
   *
   * <p>This method, in contrast to {@link #remove(Object, int)}, has no effect when the element
   * count is smaller than {@code occurrences}.
   *

        as described in Section 3.1, and You must inform recipients of the
        Executable Form how they can obtain a copy of such Source Code Form by
        reasonable means in a timely manner, at a charge no more than the cost
        of distribution to the recipient; and

     b. You may distribute such Executable Form under the terms of this License,

Toutes les fonctionnalités qui s'appliquent aux paramètres de chemin s'appliquent aussi aux paramètres de requête :

* Support de l'éditeur : vérification d'erreurs, auto-complétion, etc.
* <abbr title="conversion de la chaîne de caractères venant de la requête HTTP en données Python">"Parsing"</abbr> de données.
* Validation de données.
* Annotations d'API et documentation automatique.

## Valeurs par défaut

    val responseA = client.newCall(requestA).execute()

    assertThat(responseA.body.string()).isEqualTo("a")
    assertThat(server.takeRequest().sequenceNumber).isEqualTo(0)

    // Give the socket a chance to become stale.
    connection!!.idleAtNs -= IDLE_CONNECTION_HEALTHY_NS
    Thread.sleep(250)

    val requestB =
      Request(
        url = server.url("/"),

import java.util.stream.Collector;
import java.util.stream.Stream;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A {@link ListMultimap} whose contents will never change, with many other important properties
 * detailed at {@link ImmutableCollection}.
 *
 * <p>See the Guava User Guide article on <a href=