}

            if (size >= 0L && progressedSize != size) {
                ScaleUnit unit = ScaleUnit.getScaleUnit(size);
                String formattedProgressedSize = format(progressedSize, unit, true);
                String formattedSize = format(size, unit);

                return formattedProgressedSize + "/" + formattedSize;
            } else {
                return format(progressedSize);
            }

                        if (append) {
                            locationBuf.append('&');
                        } else {
                            locationBuf.append('?');
                            append = true;
                        }
                        locationBuf.append(urlCodec.encode(key, encoding));
                        locationBuf.append('=');

   */
  fun enqueue(responseCallback: Callback)

  /** Cancels the request, if possible. Requests that are already complete cannot be canceled. */
  fun cancel()

  /**
   * Returns true if this call has been either [executed][execute] or [enqueued][enqueue]. It is an
   * error to execute a call more than once.
   */
  fun isExecuted(): Boolean

  fun isCanceled(): Boolean

  /**

    assertThrows(NullPointerException.class, () -> collection.retainAll(null));
  }

  private void expectReturnsTrue(Target target) {
    String message = Platform.format("retainAll(%s) should return true", target);
    assertTrue(message, collection.retainAll(target.toRetain));
  }

  private void expectReturnsFalse(Target target) {
    String message = Platform.format("retainAll(%s) should return false", target);

          final List<String> result = new ArrayList<>();

          @Override
          public boolean processLine(String line) {
            result.add(line);
            return true;
          }

          @Override
          public List<String> getResult() {
            return result;
          }
        });
  }

  /**

* `allow_credentials` - 指示跨域请求支持 cookies。默认是 `False`。

    当 `allow_credentials` 设为 `True` 时，`allow_origins`、`allow_methods` 和 `allow_headers` 都不能设为 `['*']`。它们必须[显式指定](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#credentialed_requests_and_wildcards)。

* `expose_headers` - 指示可以被浏览器访问的响应头。默认为 `[]`。

    private val SSLSession.masterSecret: SecretKey?
      get() =
        javaClass
          .getDeclaredField("masterSecret")
          .apply {
            isAccessible = true
          }.get(this) as? SecretKey

    val randomRegex = "\"random\"\\s+:\\s+\"([^\"]+)\"".toRegex()

    fun register() {
      // Enable JUL logging for SSL events, must be activated early or via -D option.

      this.throwOnClose = throwOnClose;
    }

    boolean isClosed() {
      return closed;
    }

    @Override
    public void close() throws IOException {
      closed = true;
      if (throwOnClose != null) {
        throwIfInstanceOf(throwOnClose, IOException.class);
        throwIfUnchecked(throwOnClose);
        throw new AssertionError(throwOnClose);
      }
    }
  }

            assertThrows(TimeoutException.class, () -> {
                future.get(100, TimeUnit.MILLISECONDS);
            });

            // Cancel the future
            future.cancel(true);
        } finally {
            executor.shutdownNow();
        }
    }

                resultMap.put("index", index);
                resultMap.put("id", id);
                resultMap.put("field", field);
                resultMap.put("value", value.toString());
                return true;
            }
        };
        ComponentUtil.register(client, "searchEngineClient");

        final String id = "001";
        final String field = "content";
        final String value = "test";