NewStream(ctx context.Context, h HandlerID, payload []byte) (st *Stream, err error)
}

// Call the remove with the request and
func (h *StreamTypeHandler[Payload, Req, Resp]) Call(ctx context.Context, c Streamer, payload Payload) (st *TypedStream[Req, Resp], err error) {
	if c == nil {
		return nil, ErrDisconnected
	}
	var payloadB []byte
	if h.WithPayload {
		var err error

	errFatal(local.RegisterSingleHandler(handlerTest, func(payload []byte) ([]byte, *RemoteErr) {
		t.Log("1: server payload: ", len(payload), "bytes.")
		return append([]byte{}, payload...), nil
	}))
	// 2: Return as error
	errFatal(local.RegisterSingleHandler(handlerTest2, func(payload []byte) ([]byte, *RemoteErr) {
		t.Log("2: server payload: ", len(payload), "bytes.")
		err := RemoteErr(payload)
		return nil, &err
	}))

	b.Cleanup(grid.Cleanup)
	// Create n managers.
	for _, remote := range grid.Managers {
		// Register a single handler which echos the payload.
		errFatal(remote.RegisterSingleHandler(handlerTest, func(payload []byte) ([]byte, *RemoteErr) {
			defer PutByteBuffer(payload)
			return append(GetByteBuffer()[:0], payload...), nil
		}))
		errFatal(rpc.Register(remote, func(req *testRequest) (resp *testResponse, err *RemoteErr) {
			return &testResponse{

func (c *Connection) sendMsg(conn net.Conn, msg message, payload msgp.MarshalSizer) error {
	if payload != nil {
		if sz := payload.Msgsize(); cap(msg.Payload) < sz {
			PutByteBuffer(msg.Payload)
			msg.Payload = GetByteBufferCap(sz)[:0]
		}
		var err error
		msg.Payload, err = payload.MarshalMsg(msg.Payload)
		if err != nil {
			return err
		}
		defer PutByteBuffer(msg.Payload)
	}
	dst := GetByteBufferCap(msg.Msgsize())

		}
	}

	return nil
}

// validatePayload returns an error if any path in the payload returns a copy of the payload with the paths cleaned.
func validatePayload(payload map[string]FileProjection) (map[string]FileProjection, error) {
	cleanPayload := make(map[string]FileProjection)
	for k, content := range payload {
		if err := validatePath(k); err != nil {
			return nil, err
		}

				fmt.Println("muxServer: Mux", m.ID, "send EOF", hErr)
			}
			msg.Flags |= FlagEOF
			if hErr != nil {
				msg.Flags |= FlagPayloadIsErr
				msg.Payload = []byte(*hErr)
			}
			msg.setZeroPayloadFlag()
			m.send(msg)
			return
		}
		msg.Payload = payload
		msg.setZeroPayloadFlag()
		m.send(msg)
	}
}

// handleRequests will handle the requests from the client and call the handler function.

)

// http Header "x-amz-content-sha256" == "UNSIGNED-PAYLOAD" indicates that the
// client did not calculate sha256 of the payload.
const unsignedPayload = "UNSIGNED-PAYLOAD"

// http Header "x-amz-content-sha256" == "STREAMING-UNSIGNED-PAYLOAD-TRAILER" indicates that the
// client did not calculate sha256 of the payload and there is a trailer.
const unsignedPayloadTrailer = "STREAMING-UNSIGNED-PAYLOAD-TRAILER"

		PodNamespace: "funkyns",
	}

	payload, _ := json.Marshal(valid)

	addEvent, err := processAddEvent(payload)

	assert.NoError(t, err)
	assert.Equal(t, valid, addEvent)
}

func TestProcessAddEventBadPayload(t *testing.T) {
	valid := CNIPluginAddEvent{
		Netns:        "/var/netns/foo",
		PodName:      "pod-bingo",
		PodNamespace: "funkyns",
	}

	payload, _ := json.Marshal(valid)

		return
	}

	// Route directly to output.
	m.respWait = out
}

// RequestStream will send a single payload request and stream back results.
// 'requests' can be nil, in which case only req is sent as input.
// It will however take less resources.
func (m *muxClient) RequestStream(h HandlerID, payload []byte, requests chan []byte, responses chan Response) (*Stream, error) {
	if m.init {

	if err != nil {
		log.Errorf("could not open nflog socket: %v", err)
		return
	}
	defer nf.Close()

	fn := func(attrs nflog.Attribute) int {
		src, dst := "", ""
		if attrs.Payload != nil {
			v4, err := ipv4.ParseHeader(*attrs.Payload)
			if err == nil {
				src = v4.Src.String()
				dst = v4.Dst.String()
			}
		}
		prefix := ""
		if attrs.Prefix != nil {
			prefix = *attrs.Prefix
		}