anchor.diff:                           {pop, Value} ->
                                Value
                        after 10000 ->
  -                             {error, "Timed out."}
  +                             {error, timed_out}
                        end;
                    false ->
  -                     {error, "Invalid Queue."}
  +                     {error, invalid_queue}
                end,
       {reply, Return, State}.
   
  
positive.code: handle_call({new, Queue}, _From, State) ->
      case dict:is_key(Queue, State) of
          true ->
              {reply, {error, "Queue Exists."}, State};
          false ->
              {reply, ok, dict:store(Queue, diskqueue:newqueue(Queue), State)}
      end;
  
negative.code:                      dict:fetch(Queue, State) ! {push, self(), What},
                       ok;
                   false ->
                       {error, invalid_queue}
               end,
      {reply, Return, State};
  
  