Where are akka.actor.ActorRef ask / tell shortcuts ? ! defined in API?

akka, scala

Solution

`!` is in `akka.actor.ActorRef`

`?` is in `akka.pattern.AskSupport`

Problem

Where can I find the API for ActorRef.? and ActorRef.! in http://doc.akka.io/api/akka/current? There are multiple versions of each, but I can't find them anywhere.

Original source