* Closes this connection. This cancels all open streams and unanswered pings. It closes the
   * underlying input and output streams and shuts down internal task queues.
   */
  override fun close() {
    close(ErrorCode.NO_ERROR, ErrorCode.CANCEL, null)
  }

  internal fun close(
    connectionCode: ErrorCode,
    streamCode: ErrorCode,
    cause: IOException?,
  ) {
    assertLockNotHeld()

    ignoreIoExceptions {

        } else {
          socket.close()
        }
      }

      ShutdownConnection -> {
        if (stream != null) {
          stream.connection.shutdown(ErrorCode.NO_ERROR)
        } else {
          socket.close()
        }
      }

      is CloseSocket -> {
        if (effect.shutdownInput) socket.shutdownInput()
        if (effect.shutdownOutput) socket.shutdownOutput()

    peer.acceptFrame() // PING
    peer.sendFrame().headers(false, 3, headerEntries("a", "android"))
    peer.sendFrame().data(true, 3, Buffer().writeUtf8("robot"), 5)
    peer.sendFrame().rstStream(3, ErrorCode.NO_ERROR)
    peer.sendFrame().ping(true, Http2Connection.AWAIT_PING, 0) // PONG
    peer.play()

    // Play it back.
    val connection = connect(peer)
    val stream = connection.newStream(headerEntries(), false)

     * close the socket after the response body or trailers.
     */
    public fun doNotReadRequestBody(): Builder =
      apply {
        doNotReadRequestBody = true
        onResponseEnd = CloseStream(ErrorCode.NO_ERROR.httpCode)
      }

    /** Trigger [socketEffect] while reading the request body. */
    public fun onRequestBody(socketEffect: SocketEffect?): Builder =
      apply {
        this.onRequestBody = socketEffect