anchor.diff:      (Keyword::exch_failure, {_MsgTag::atom(), Data::load_data(), _Round::non_neg_integer()},
                State::state()) -> {ok, state()}.
   notify_change(new_round, NewRound, State) ->
  -    log:log(debug, "[ ~w ] new_round notification. NewRound: ~w", [?MODULE, NewRound]),
  +    log:log(debug, "[ ~w ] new_round notification. NewRound: ~w", [state_get(instance, State), NewRound]),
       case state_get(request, State) of
           true ->
               finish_request(State);
  
positive.code: 
      % histogram
      Histo = init_histo(DHTNodeState, State),
      log:log(?SHOW,"[ ~w ] Histo: ~s", [?MODULE, to_string(Histo)]),
      Data7 = load_data_set(histo, Histo, Data6),
  
      state_set(load_data, Data7, State),
  
negative.code:             log:log(?SHOW, "[ ~w ] select_reply_data in uninit", [?MODULE]),
              {retry,State};
          init when not IsValidRound ->
              log:log(warn, "[ ~w ] Discarded data in select_reply_data. Reason: invalid round.",
                  [state_get(instance, State)]),
              {send_back, State};
          init when RoundStatus =:= current_round ->
              Data1 = prepare_load_data(State),
  