anchor.diff:           ([#mqtt_pingreq{}]) -> ok;
            ([#mqtt_pingresp{}]) -> ok;
            ([#mqtt_disconnect{}]) -> ok end).
  +
  +vmq_m5_parser_serialize_ms() ->
  +    dbg:fun2ms(
  +      fun([#mqtt5_connect{}]) -> ok;
  +         ([#mqtt5_connack{}]) -> ok;
  +         ([#mqtt5_publish{}]) -> ok;
  +         ([#mqtt5_puback{}]) -> ok;
  +         ([#mqtt5_pubrec{}]) -> ok;
  +         ([#mqtt5_pubrel{}]) -> ok;
  +         ([#mqtt5_pubcomp{}]) -> ok;
  +         ([#mqtt5_subscribe{}]) -> ok;
  +         ([#mqtt5_unsubscribe{}]) -> ok;
  +         ([#mqtt5_suback{}]) -> ok;
  +         ([#mqtt5_unsuback{}]) -> ok;
  +         ([#mqtt5_pingreq{}]) -> ok;
  +         ([#mqtt5_pingresp{}]) -> ok;
  +         ([#mqtt5_disconnect{}]) -> ok;
  +         ([#mqtt5_auth{}]) -> ok end).
   
   vmq_mqtt_fsm_connected_ms() ->
       dbg:fun2ms(
  
positive.code:          ([#mqtt_pingresp{},_]) -> ok;
           ([#mqtt_disconnect{},_]) -> ok end).
  
  vmq_plugin_hooks_ms() ->
      [{[auth_on_register,'_'],[],[{return_trace}]},
       {[auth_on_publish,'_'],[],[{return_trace}]},
       {[auth_on_subscribe,'_'],[],[{return_trace}]}
       %%{[on_register,'_'],[],[{return_trace}]},
       %%{[on_publish,'_'],[],[{return_trace}]},
       %%{[on_deliver,'_'],[],[{return_trace}]},
  
negative.code:     Unprepared =
          case Trace of
              {trace, Pid, call, {vmq_parser, serialise, [Msg]}} ->
                  format_frame(from, Pid, SId, Msg, Opts);
              {trace, Pid, call, {vmq_mqtt_fsm, connected, [Msg, _]}} ->
                  format_frame(to, Pid, SId, Msg, Opts);
              {trace, Pid, call, {vmq_parser_mqtt5, serialise, [Msg]}} ->
                  format_frame(from, Pid, SId, Msg, Opts);
              {trace, Pid, call, {vmq_mqtt5_fsm, connected, [Msg, _]}} ->
                  format_frame(to, Pid, SId, Msg, Opts);
              {trace, Pid, call, {vmq_plugin, all_till_ok, [Hook, Args]}} ->
                  format_all_till_ok(Hook, Pid, Args, Opts);
              {trace, Pid, return_from, {vmq_plugin,all_till_ok,2}, Ret} ->
  