/**
     * Creates a new web socket and immediately returns it. Creating a web socket initiates an
     * asynchronous process to connect the socket. Once that succeeds or fails, `listener` will be
     * notified. The caller must either close or cancel the returned web socket when it is no longer
     * in use.
     */
    fun newWebSocket(
      request: Request,
      listener: WebSocketListener,
    ): WebSocket
  }

115A..115E    ; valid                  ;      ; NV8    # 5.2  HANGUL CHOSEONG KIYEOK-TIKEUT..HANGUL CHOSEONG TIKEUT-RIEUL
115F..1160    ; disallowed                             # 1.1  HANGUL CHOSEONG FILLER..HANGUL JUNGSEONG FILLER
1161..11A2    ; valid                  ;      ; NV8    # 1.1  HANGUL JUNGSEONG A..HANGUL JUNGSEONG SSANGARAEA
11A3..11A7    ; valid                  ;      ; NV8    # 5.2  HANGUL JUNGSEONG A-EU..HANGUL JUNGSEONG O-YAE

    val out1 = stream1.getSink().buffer()
    out1.write(ByteArray(Settings.DEFAULT_INITIAL_WINDOW_SIZE))
    out1.flush()

    // Check that we've filled the window for both the stream and also the connection.
    assertThat(connection.writeBytesTotal)
      .isEqualTo(Settings.DEFAULT_INITIAL_WINDOW_SIZE.toLong())
    assertThat(connection.writeBytesMaximum)