pkg net, type Resolver struct, StrictErrors bool
pkg net/http, func ServeTLS(net.Listener, Handler, string, string) error
pkg net/http, method (*Server) RegisterOnShutdown(func())
pkg net/http, method (*Server) ServeTLS(net.Listener, string, string) error
pkg net/http/fcgi, func ProcessEnv(*http.Request) map[string]string

  /**
   * Value for [B1_MASK_LENGTH] which indicates the next eight bytes are the unsigned
   * length.
   */
  internal const val PAYLOAD_LONG = 127

  /** Used when an unchecked exception was thrown in a listener. */
  internal const val CLOSE_CLIENT_GOING_AWAY = 1001

  /** Used when an empty close frame was received (i.e., without a status code). */
  internal const val CLOSE_NO_STATUS_CODE = 1005

  fun toggleMask(

     */
    public fun webSocketUpgrade(listener: WebSocketListener): Builder =
      apply {
        status = "HTTP/1.1 101 Switching Protocols"
        setHeader("Connection", "Upgrade")
        setHeader("Upgrade", "websocket")
        webSocketListener = listener
      }

    /**

        private boolean hasShutdownListener = false;

        @Override
        public void addShutdownListener(ShutdownListener listener) {
            hasShutdownListener = true;
            super.addShutdownListener(listener);
        }

        @Override
        public Object execute(String scriptType, String script) {
            return null;
        }

    }

    @Override
    public final boolean isCancelled() {
      return super.isCancelled();
    }

    @Override
    public final void addListener(Runnable listener, Executor executor) {
      super.addListener(listener, executor);
    }

    @CanIgnoreReturnValue
    @Override
    public final boolean cancel(boolean mayInterruptIfRunning) {
      return super.cancel(mayInterruptIfRunning);
    }

    target_match:
      severity: 'warning'
    equal: ['alertname', 'dev', 'instance']
```

This sample configuration uses a `webhook` at http://127.0.0.1:8010/webhook to post the alerts.
Start the AlertManager and it listens on port `9093` by default. Make sure your webhook is up and listening for the alerts.

## Configure Prometheus to use AlertManager

Add below section to your `prometheus.yml`
```yaml
alerting:
  alertmanagers:

      return sync.wasInterrupted();
    }

    /**
     * {@inheritDoc}
     *
     * @since 10.0
     */
    @Override
    public void addListener(Runnable listener, Executor exec) {
      executionList.add(listener, exec);
    }

    /**
     * Subclasses should invoke this method to set the result of the computation to {@code value}.

Um das zu tun, verwenden Sie Pythons Standard-Typhinweis <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>:

/// note | Hinweis

   * first DNS result for the first time.
   */
  @Test
  fun prefersExistingCompatible() {
    server.enqueue(MockResponse())
    server.enqueue(MockResponse())
    val connectCount = AtomicInteger()
    val listener: EventListener =
      object : EventListener() {
        override fun connectStart(
          call: Call,
          inetSocketAddress: InetSocketAddress,
          proxy: Proxy,
        ) {

          throw EXCEPTION;
      }
      return outputFuture;
    }
  }

  public void testFutureGetThrowsFunctionException() throws Exception {
    inputFuture.set(EXCEPTION_DATA);
    listener.assertException(EXCEPTION);
  }

  public void testFutureGetThrowsCancellationIfInputCancelled() throws Exception {
    inputFuture.cancel(true); // argument is ignored