enableProtocol(Protocol.HTTP_2)
    val body =
      MockStreamHandler()
        .receiveRequest("request A\n")
        .sendResponse("response B\n")
        .receiveRequest("request C\n")
        .sendResponse("response D\n")
        .receiveRequest("request E\n")
        .sendResponse("response F\n")
        .exhaustRequest()
        .exhaustResponse()
    server.enqueue(
      MockResponse.Builder()

	wroteHeader  bool
	hasContent   bool
	sentResponse bool
	pw           *io.PipeWriter
}

func (pr *populateResponse) finish() {
	if !pr.wroteHeader {
		pr.WriteHeader(500)
	}
	if !pr.sentResponse {
		pr.sendResponse()
	}
	pr.pw.Close()
}

func (pr *populateResponse) sendResponse() {
	if pr.sentResponse {
		return
	}
	pr.sentResponse = true

	if pr.hasContent {

        try {
          stream.requestBody.exhausted()
          throw AssertionError("expected IOException")
        } catch (expected: IOException) {
        }
      }
    }

  @JvmOverloads
  fun sendResponse(
    s: String,
    responseSent: CountDownLatch = CountDownLatch(0),
  ) = apply {
    actions += { stream ->
      stream.responseBody.writeUtf8(s)
      stream.responseBody.flush()
      responseSent.countDown()

		}
	})
}

func TestTimeout(t *testing.T) {
	origReallyCrash := runtime.ReallyCrash
	runtime.ReallyCrash = false
	defer func() {
		runtime.ReallyCrash = origReallyCrash
	}()

	sendResponse := make(chan string, 1)
	doPanic := make(chan interface{}, 1)
	writeErrors := make(chan error, 1)
	gotPanic := make(chan interface{}, 1)
	timeout := make(chan time.Time, 1)
	resp := "test response"

// receives an invalid request. It is never decoded by the client since the Response
// contains an error when it is used.
var invalidRequest = struct{}{}

func (server *Server) sendResponse(sending *sync.Mutex, req *Request, reply any, codec ServerCodec, errmsg string) {
	resp := server.getResponse()
	// Encode the response header
	resp.ServiceMethod = req.ServiceMethod
	if errmsg != "" {

}

func Send(ctx ConnectionContext, res *discovery.DiscoveryResponse) error {
	conn := ctx.XdsConnection()
	sendResponse := func() error {
		start := time.Now()
		defer func() { RecordSendTime(time.Since(start)) }()
		return conn.stream.Send(res)
	}
	err := sendResponse()
	if err == nil {
		if res.Nonce != "" && !strings.HasPrefix(res.TypeUrl, model.DebugType) {

// the request with the given id.
func (p *Pipeline) StartResponse(id uint) {
	p.response.Start(id)
}

// EndResponse notifies p that the response with the given id has been received
// (or, if this is a server, sent).
func (p *Pipeline) EndResponse(id uint) {
	p.response.End(id)
}

// A sequencer schedules a sequence of numbered events that must

// Cmd returns the id of the command, for use with StartResponse and EndResponse.
//
// For example, a client might run a HELP command that returns a dot-body
// by using:
//
//	id, err := c.Cmd("HELP")
//	if err != nil {
//		return nil, err
//	}
//
//	c.StartResponse(id)
//	defer c.EndResponse(id)
//
//	if _, _, err = c.ReadCodeLine(110); err != nil {
//		return nil, err
//	}

			case <-m.ctx.Done():
				return
			case handlerIn <- in:
				m.send(message{Op: OpUnblockClMux, MuxID: m.ID, Flags: c.baseFlags})
			}
		}
	}
}

// sendResponses will send responses to the client.
func (m *muxServer) sendResponses(ctx context.Context, toSend <-chan []byte, c *Connection, handlerErr *atomic.Pointer[RemoteErr], outBlock <-chan struct{}) {
	for {
		// Process outgoing message.
		var payload []byte

	// Ensure ordered execution of Reads and Writes
	id := sc.pipe.Next()
	sc.pipe.StartRequest(id)
	defer func() {
		sc.pipe.EndRequest(id)
		if req == nil {
			sc.pipe.StartResponse(id)
			sc.pipe.EndResponse(id)
		} else {
			// Remember the pipeline id of this request
			sc.mu.Lock()
			sc.pipereq[req] = id
			sc.mu.Unlock()
		}
	}()

	sc.mu.Lock()