you can replace this code with:
```code
Creature* sironas = NULL;
Trinity::AllCreaturesOfEntryInRange check(me, NPC_SIRONAS, SIZE_OF_GRIDS);
Trinity::CreatureSearcher<Trinity::AllCreaturesOfEntryInRange> searcher(me, sironas, check);
me->VisitNearbyObject(SIZE_OF_GRIDS, searcher);
```