LabelTypeHelper mockLabelTypeHelper = new LabelTypeHelper() {
            @Override
            public Set<String> getMatchedLabelValueSet(String url) {
                Set<String> labels = new HashSet<>();
                if (url != null && url.contains("test")) {
                    labels.add("label1");
                    labels.add("label2");
                }
                return labels;
            }

    server.requestClientAuth()
    server.enqueue(
      MockResponse
        .Builder()
        .body("abc")
        .build(),
    )
    val call = client.newCall(Request.Builder().url(server.url("/")).build())
    val response = call.execute()
    assertThat(response.handshake!!.peerPrincipal)
      .isEqualTo(X500Principal("CN=Local Host"))
    assertThat(response.handshake!!.localPrincipal)

* `description`: タグの簡単な説明文である `str`。 Markdownで記述でき、ドキュメントUIに表示されます。
* `externalDocs`: 外部ドキュメントを説明するための `dict`:
    * `description`: 外部ドキュメントの簡単な説明文である `str`。
    * `url` (**必須**): 外部ドキュメントのURLである `str`。

### タグのためのメタデータの作成

`users` と `items` のタグを使った例でメタデータの追加を試してみましょう。

タグのためのメタデータを作成し、それを `openapi_tags` パラメータに渡します。

{* ../../docs_src/metadata/tutorial004.py hl[3:16,18] *}

    server.enqueue(
      MockResponse
        .Builder()
        .body("abc")
        .build(),
    )
    val call1 =
      client.newCall(
        Request
          .Builder()
          .url(server.url("/"))
          .build(),
      )
    val response1 = call1.execute()
    assertThat(response1.body.string()).isEqualTo("abc")
  }

  /**

   */
  @get:JvmName("proxySelector") val proxySelector: ProxySelector,
) {
  /**
   * Returns a URL with the hostname and port of the origin server. The path, query, and fragment of
   * this URL are always empty, since they are not significant for planning a route.
   */
  @get:JvmName("url")
  val url: HttpUrl =
    HttpUrl
      .Builder()
      .scheme(if (sslSocketFactory != null) "https" else "http")

     * @param url the URL to get click count for
     * @param clickCountField the field name to store click count
     */
    protected void addClickCountField(final Map<String, Object> doc, final String url, final String clickCountField) {
        final SearchLogHelper searchLogHelper = ComponentUtil.getSearchLogHelper();
        final int count = searchLogHelper.getClickCount(url);
        doc.put(clickCountField, count);

		<antcall target="install.env.jar">
			<param name="repo.url" value="${maven.release.repo.url}" />
			<param name="jar.groupId" value="jakarta/annotation" />
			<param name="jar.artifactId" value="jakarta.annotation-api" />
			<param name="jar.version" value="2.1.1" />
			<param name="file.version" value="2.1.1" />
		</antcall>
		<!-- kopf -->
		<get dest="${target.dir}/kopf.zip">

        checkNotNull(url) { "url not set" },
        includeIPv6,
        post,
        resolvePrivateAddresses,
        resolvePublicAddresses,
      )
    }

    fun client(client: OkHttpClient) =
      apply {
        this.client = client
      }

    fun url(url: HttpUrl) =
      apply {
        this.url = url
      }

func (sys *BucketTargetSys) isOffline(ep *url.URL) bool {
	sys.hMutex.RLock()
	defer sys.hMutex.RUnlock()
	if h, ok := sys.hc[ep.Host]; ok {
		return !h.Online
	}
	go sys.initHC(ep)
	return false
}

// markOffline sets endpoint to offline if network i/o timeout seen.
func (sys *BucketTargetSys) markOffline(ep *url.URL) {
	sys.hMutex.Lock()
	defer sys.hMutex.Unlock()

    }

    /**
     * Generates URL query parameters for facet filtering.
     *
     * @return URL-encoded query string containing facet parameters
     */
    public static String facetQuery() {
        return createQuery(Constants.FACET_QUERY, FACET_PREFIX);
    }

    /**
     * Generates URL query parameters for geographic filtering.
     *
     * @return URL-encoded query string containing geographic parameters