description: str | None = None
    get: Operation | None = None
    put: Operation | None = None
    post: Operation | None = None
    delete: Operation | None = None
    options: Operation | None = None
    head: Operation | None = None
    patch: Operation | None = None
    trace: Operation | None = None
    servers: list[Server] | None = None
    parameters: list[Parameter | Reference] | None = None

#### Operation { #operation }

ここでの「オペレーション」とは、HTTPの「メソッド」の1つを指します。

以下のようなものの1つ:

* `POST`
* `GET`
* `PUT`
* `DELETE`

...さらによりエキゾチックなもの:

* `OPTIONS`
* `HEAD`
* `PATCH`
* `TRACE`

HTTPプロトコルでは、これらの「メソッド」の1つ（または複数）を使用して各パスにアクセスできます。

---

APIを構築するときは、通常、これらの特定のHTTPメソッドを使用して特定のアクションを実行します。

通常は次を使用します:

* `POST`: データの作成
* `GET`: データの読み取り

开发 API 时，「路径」是用来分离「关注点」和「资源」的主要手段。

#### 操作 { #operation }

这里的「操作」指的是一种 HTTP「方法」。

下列之一：

* `POST`
* `GET`
* `PUT`
* `DELETE`

...以及更少见的几种：

* `OPTIONS`
* `HEAD`
* `PATCH`
* `TRACE`

在 HTTP 协议中，你可以使用以上的其中一种（或多种）「方法」与每个路径进行通信。

---

在开发 API 时，你通常使用特定的 HTTP 方法去执行特定的行为。

通常使用：

* `POST`：创建数据。
* `GET`：读取数据。
* `PUT`：更新数据。

                .named("ImmutableIntArray.asList"),
            ListTestSuiteBuilder.using(new ImmutableIntArrayHeadSubListAsListGenerator())
                .named("ImmutableIntArray.asList, head subList"),
            ListTestSuiteBuilder.using(new ImmutableIntArrayTailSubListAsListGenerator())
                .named("ImmutableIntArray.asList, tail subList"),

            .createTestSuite());
    suite.addTest(
        ListTestSuiteBuilder.using(new ImmutableListHeadSubListGenerator())
            .named("ImmutableList, head subList")
            .withFeatures(CollectionSize.ANY, SERIALIZABLE, ALLOWS_NULL_QUERIES)
            .createTestSuite());
    suite.addTest(
        ListTestSuiteBuilder.using(new ImmutableListTailSubListGenerator())

pkg net/http, const MethodDelete = "DELETE"
pkg net/http, const MethodDelete ideal-string
pkg net/http, const MethodGet = "GET"
pkg net/http, const MethodGet ideal-string
pkg net/http, const MethodHead = "HEAD"
pkg net/http, const MethodHead ideal-string
pkg net/http, const MethodOptions = "OPTIONS"
pkg net/http, const MethodOptions ideal-string
pkg net/http, const MethodPatch = "PATCH"

    for (int oldTableIndex = 0; oldTableIndex <= oldMask; oldTableIndex++) {
      int oldNext = CompactHashing.tableGet(oldTable, oldTableIndex);
      // Each element of `oldTable` is the head of a (possibly empty) linked list of elements in
      // `entries`. The `oldNext` loop is going to traverse that linked list.
      // We need to rewrite the `next` link of each of the elements so that it is in the appropriate

    blueQueue.cancelAll()
    assertThat(taskFaker.executeCallCount).isEqualTo(1)
  }

  @Test fun noMoreThanOneWorkerThreadWaitingToStartAtATime() {
    // Enqueueing the red task starts a thread because the head of the queue changed.
    redQueue.execute("red task") {
      log += "red:starting@${taskFaker.nanoTime}"
      taskFaker.sleep(100.µs)
      log += "red:finishing@${taskFaker.nanoTime}"
    }

		recV2 := httptest.NewRecorder()
		// construct HTTP request for Head Object endpoint.
		reqV2, err := newTestSignedRequestV2(http.MethodHead, getHeadObjectURL("", testCase.bucketName, testCase.objectName),
			0, nil, testCase.accessKey, testCase.secretKey, nil)
		if err != nil {
			t.Fatalf("Test %d: %s: Failed to create HTTP request for Head Object: <ERROR> %v", i+1, instanceType, err)
		}

		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	api.getObjectAttributesHandler(ctx, objectAPI, bucket, object, w, r)
}

// HeadObjectHandler - HEAD Object
// -----------
// The HEAD operation retrieves metadata from an object without returning the object itself.
func (api objectAPIHandlers) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "HeadObject")