* @since 12.0
   */
  @Override
  public @Nullable E floor(E e) {
    return Iterators.<@Nullable E>getNext(headSet(e, true).descendingIterator(), null);
  }

  /**
   * @since 12.0
   */
  @Override
  public @Nullable E ceiling(E e) {
    return Iterables.<@Nullable E>getFirst(tailSet(e, true), null);
  }

  /**
   * @since 12.0
   */
  @GwtIncompatible // NavigableSet
  @Override

fun consumableVariant(reportType: String, artifact: Provider<RegularFile>) = configurations.create("incubatingReport${reportType.capitalize()}") {
    isCanBeResolved = false
    isCanBeConsumed = true
    attributes {
        attribute(Usage.USAGE_ATTRIBUTE, objects.named(Usage.JAVA_RUNTIME))
        attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category.DOCUMENTATION))

        return this;
    }

    /**
     * Checks if streaming is enabled.
     *
     * @return true if streaming is enabled
     */
    public boolean isStream() {
        return stream;
    }

    /**
     * Sets whether streaming is enabled.
     *
     * @param stream true to enable streaming
     * @return this request for method chaining
     */

支援以下參數：

- `allowed_hosts` - 允許作為主機名稱的網域名稱清單。支援萬用字元網域（例如 `*.example.com`）以比對子網域。若要允許任意主機名稱，可使用 `allowed_hosts=["*"]`，或乾脆不要加上此中介軟體。
- `www_redirect` - 若設為 True，對允許主機的不含 www 版本的請求會被重新導向至其 www 對應版本。預設為 `True`。

若傳入請求驗證失敗，將回傳 `400` 回應。

## `GZipMiddleware` { #gzipmiddleware }

處理在 `Accept-Encoding` 標頭中包含 `"gzip"` 的請求之 GZip 壓縮回應。

此中介軟體會處理一般與串流回應。

            if line.startswith("```"):
                count = len(line) - len(line.lstrip("`"))
                if count == 3:
                    in_code_block3 = True
                    continue
                elif count >= 4:
                    in_code_block4 = True
                    continue

            header_match = HEADER_WITH_PERMALINK_RE.match(line)
            if header_match:

        return null;
    }

    @Override
    protected String createSqlSuffix() {
        return null;
    }

    @Override
    public void fetchFirst(int fetchSize) {
        _fetchScopeEffective = true;
        if (fetchSize < 0) {
            String msg = "Argument[fetchSize] should be plus: " + fetchSize;
            throw new IllegalArgumentException(msg);
        }
        _fetchStartIndex = 0;

        return null;
    }

    @Override
    protected String createSqlSuffix() {
        return null;
    }

    @Override
    public void fetchFirst(int fetchSize) {
        _fetchScopeEffective = true;
        if (fetchSize < 0) {
            String msg = "Argument[fetchSize] should be plus: " + fetchSize;
            throw new IllegalArgumentException(msg);
        }
        _fetchStartIndex = 0;

  RegularImmutableMap(Map<? extends K, ? extends V> delegate) {
    super(delegate);
  }

  RegularImmutableMap(Entry<? extends K, ? extends V>... entries) {
    this(/* throwIfDuplicateKeys= */ true, entries);
  }

  RegularImmutableMap(boolean throwIfDuplicateKeys, Entry<? extends K, ? extends V>[] entries) {
    super(throwIfDuplicateKeys, entries);
  }

	select {
	case <-s.set:
		return s.v
	default:
		return nil
	}
}

// IsSet will return whether the singleton has been set.
func (s *Singleton[T]) IsSet() bool {
	select {
	case <-s.set:
		return true
	default:
		return false
	}
}

// Set the value and unblock all Get requests.
// This may only be called once, a second call will panic.
func (s *Singleton[T]) Set(v *T) {
	s.v = v
	close(s.set)

#ifndef TENSORFLOW_C_EAGER_C_API_REMOTE_TEST_UTIL_H_
#define TENSORFLOW_C_EAGER_C_API_REMOTE_TEST_UTIL_H_

// Run a function containing a MatMul op and check its output.
// If heavy_load_on_streaming_rpc is true, send some rpc requests before the one
// which creates a remote input, to simulate a scenario that the remote input
// is not ready when we start running an op or a function.