Function npcSay

npcSay(npcId: number, message: string, lifetime: number): void
Generates a message above the specified npc, as if sent through chat.
Parameters
- npcId: number
  the id of the npc to display the message over
- message: string
  the message to print to the screen
- lifetime: number
  how long to display the message on the screen for in render frames (e.g. a value of 60 will display for 1 second if running at 60 fps).
Returns void
Example
```
npc = osrs.ClientOp.getNpcIdByName("Emblem Trader")
osrs.ClientOp.npcSay(npc, "Example Message", 100)
```
- Defined in clientop.d.ts:1018