anchor.diff:  %% Function: dump() -> {gb_tree:gb_trees(), {Date, Time}}
   %% Description: gets the logging state
   %%--------------------------------------------------------------------
  +-spec dump() -> {gb_tree(), {integer(), integer(), integer()}}.
   dump() ->
       gen_server:call(?MODULE, {dump}).
   
  
positive.code: %%                                      {stop, Reason, State}
  %% Description: Handling cast messages
  %%--------------------------------------------------------------------
  handle_cast({log, Tag, Size}, State) ->
      case gb_trees:lookup(Tag, State#state.map) of
          none ->
  
negative.code: %%                                       {stop, Reason, State}
  %% Description: Handling all non call/cast messages
  %%--------------------------------------------------------------------
  -spec handle_info(any(), #state{}) -> {noreply, #state{}}.
  handle_info(_Info, State) ->
      {noreply, State}.
  
  