}

  /**
   * Configure the server to [want client auth][SSLSocket.setWantClientAuth]. If the
   * client presents a certificate that is [trusted][TrustManager] the handshake will
   * proceed normally. The connection will also proceed normally if the client presents no
   * certificate at all! But if the client presents an untrusted certificate the handshake
   * will fail and no connection will be established.
   */

 * enriched {@link Iterable} for pre-Java-8 users.
 *
 * <h3>Three types of methods</h3>
 *
 * Like other fluent types, there are three types of methods present: methods for <i>acquiring</i>,
 * <i>chaining</i>, and <i>using</i>.
 *
 * <h4>Acquiring</h4>
 *
 * <p>The common ways to get an instance of {@code Ordering} are:
 *
 * <ul>

    if (containedKey && Objects.equals(value, get(key))) {
      return value;
    }
    if (force) {
      inverse().remove(value);
    } else {
      checkArgument(!containsValue(value), "value already present: %s", value);
    }
    V oldValue = delegate.put(key, value);
    updateInverseMap(key, containedKey, oldValue, value);
    return oldValue;
  }

  private void updateInverseMap(

/**
 * Describes whether a target should be activated or not, and if that is required or optional.
 *
 * @param active Should the target be active?
 * @param optional Should the build continue if the target is not present?
 * @param recurse Should the target be activated and its children be activated?
 */
public record ActivationSettings(boolean active, boolean optional, boolean recurse) {

    expectAdded(entry(null, v3()));
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testMergePresent() {
    assertEquals(
        "Map.merge(present, value, function) should return function result",
        v4(),
        getMap()
            .merge(
                k0(),
                v3(),
                (oldV, newV) -> {

      apply {
        this.headers = headers.newBuilder()
      }

    /**
     * Sets this request's `Cache-Control` header, replacing any cache control headers already
     * present. If [cacheControl] doesn't define any directives, this clears this request's
     * cache-control headers.
     */
    open fun cacheControl(cacheControl: CacheControl): Builder {
      val value = cacheControl.toString()

        return STSElement(self.root_name, elt) if elt is not None else None

    def get_child_text(self, name, strict=True):
        """Extract text of a child element. If strict, and child element is
        not present, raises InvalidXMLError and otherwise returns
        None.

        """
        if strict:
            try:
                return self.element.find('sts:{}'.format(name), _STS_NS).text

    // ordered endpoints not compatible with undirected graph
    assertThat(edges).doesNotContain(EndpointPair.ordered(N1, N2));

    assertThat(edges).doesNotContain(EndpointPair.unordered(N2, N2)); // edge not present
    assertThat(edges).doesNotContain(EndpointPair.unordered(N3, N4)); // nodes not in graph
  }

  @Test
  public void endpointPair_directed_contains() {

    // ordered endpoints not compatible with undirected graph
    assertThat(edges).doesNotContain(EndpointPair.ordered(N1, N2));

    assertThat(edges).doesNotContain(EndpointPair.unordered(N2, N2)); // edge not present
    assertThat(edges).doesNotContain(EndpointPair.unordered(N3, N4)); // nodes not in graph
  }

  @Test
  public void endpointPair_directed_contains() {

- response (HTTP): 响应
- path operation: 路径操作
- path operation function: 路径操作函数

### `///` admonitions

- Keep the admonition keyword in English (do not translate `note`, `tip`, etc.).
- If a title is present, prefer these canonical titles:

- `/// tip | 提示`
- `/// note | 注意`
- `/// warning | 警告`
- `/// info | 信息`