Function useOnNpc

useOnNpc(spellName: string, npc: NPC, delay?: number): number
Uses the given spell on the target npc with optional delay. Must be called on the ClientThread or it will silently error
Parameters
- spellName: string
  the name of the spell
- npc: NPC
  the npc to interact with
- Optionaldelay: number
  optional delay, if one isn't supplied it'll execute the first action after API delay
Returns number
- a number which is equivalent to the delay used to complete all actions