anchor.diff:  %%      Called by the gossip module upon {get_values_best} messages.
   -spec get_values_best(State::state()) -> {ok, state()}.
   get_values_best(State) ->
  +    %% use to implement get_subset_rand() api functions??
       {ok, State}.
   
   
  
positive.code: -spec web_debug_info(state()) ->
      {KeyValueList::[{Key::string(), Value::any()},...], state()}.
  web_debug_info(State) ->
      {[{"Key", "Value"}], State}.
  
  
  
negative.code: %%      of them are ignored, as cyclon doesn't use / implements this features.
  -spec notify_change(_, _, State::state()) -> {ok, state()}.
  notify_change(_, _, State) ->
      %% Possible to use key range changes for rm_check() / rm_send_changes() ???
      {ok, State}.
  
  
  