assertEquals(encoded, decoded);
            assertArrayEquals(ciphers, decodedContext.getCiphers());
        }

        @Test
        @DisplayName("Should preserve cipher order")
        void testCipherOrderPreservation() throws SMBProtocolDecodingException {
            int[] ciphers = { 5, 3, 1, 4, 2 };

///

### ドキュメントの確認 { #check-the-docs }

ここでドキュメントを確認すると、追加したメタデータがすべて表示されます:

<img src="/img/tutorial/metadata/image02.png">

### タグの順番 { #order-of-tags }

タグのメタデータ辞書の順序は、ドキュメントUIに表示される順序の定義にもなります。

たとえば、`users` はアルファベット順では `items` の後に続きますが、リストの最初の辞書としてメタデータを追加したため、それより前に表示されます。

## OpenAPI URL { #openapi-url }

デフォルトでは、OpenAPIスキーマは `/openapi.json` で提供されます。

    private static Logger LOGGER = Logging.getLogger(DockerSupportService.class);
    // Defines the possible locations of the Docker CLI. These will be searched in order.
    private static String[] DOCKER_BINARIES = { "/usr/bin/docker", "/usr/local/bin/docker" };
    private static String[] DOCKER_COMPOSE_BINARIES = { "/usr/local/bin/docker-compose", "/usr/bin/docker-compose" };

					ModTime:   baseTime.Add(30 * time.Minute).UnixNano(),
					Signature: [4]byte{1, 1, 1, 1},
					Type:      ObjectType,
					Flags:     0,
				}},
			},
		},
		// Mismatches Modtime+Signature and older...
		1: {
			versions: []xlMetaV2ShallowVersion{
				{header: xlMetaV2VersionHeader{
					VersionID: [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
					ModTime:   baseTime.Add(15 * time.Minute).UnixNano(),

        this.runnable = runnable;
        this.executor = executor;
        this.next = next;
      }
    }
  }

  // A version of the ExecutionList that uses an explicit tail pointer to keep the nodes in order
  // rather than flipping the stack in execute().
  private static final class NewExecutionListQueue {
    static final Logger log = Logger.getLogger(NewExecutionListQueue.class.getName());

    @GuardedBy("this")

Você pode usar as mesmas declarações de tipo com `str`, `float`, `bool` e muitos outros tipos de dados complexos.

Vários deles são explorados nos próximos capítulos do tutorial.

## A ordem importa { #order-matters }

Ao criar *operações de rota*, você pode encontrar situações em que tem um path fixo.

Como `/users/me`, digamos que seja para obter dados sobre o usuário atual.

## Pydantic { #pydantic }

FastAPI 充分地利用了 [Pydantic](https://docs.pydantic.dev/) 的优势，用它在后台校验数据。众所周知，Pydantic 擅长的就是数据校验。

同样，`str`、`float`、`bool` 以及很多复合数据类型都可以使用类型声明。

接下来的章节会介绍其中的好几种。

## 顺序很重要 { #order-matters }

有时，*路径操作*中的路径是写死的。

比如要使用 `/users/me` 获取当前用户的数据。

然后还要使用 `/users/{user_id}`，通过用户 ID 获取指定用户的数据。

由于*路径操作*是按顺序依次运行的，因此，一定要在 `/users/{user_id}` 之前声明 `/users/me` ：

    assertEqualIgnoringOrder(asList(expected), asList(actual));
  }

  private void expectArrayContentsInOrder(List<E> expected, Object[] actual) {
    assertEquals("toArray() ordered contents: ", expected, asList(actual));
  }

  /**
   * Returns the {@link Method} instance for {@link #testToArray_isPlainObjectArray()} so that tests
   * of {@link Arrays#asList(Object[])} can suppress it with {@code

	metacacheSharePrefix = false
)

//go:generate msgp -file $GOFILE -unexported

// metacache contains a tracked cache entry.
type metacache struct {
	// do not re-arrange the struct this struct has been ordered to use less
	// space - if you do so please run https://github.com/orijtech/structslop
	// and verify if your changes are optimal.
	ended        time.Time  `msg:"end"`
	started      time.Time  `msg:"st"`

  private val taskRunner = builder.taskRunner

  /** Asynchronously writes frames to the outgoing socket. */
  private val writerQueue = taskRunner.newQueue()

  /** Ensures push promise callbacks events are sent in order per stream. */
  private val pushQueue = taskRunner.newQueue()

  /** Notifies the listener of settings changes. */
  private val settingsListenerQueue = taskRunner.newQueue()