akka.pattern
Interfaces 
AskSupport
FutureTimeoutSupport
GracefulStopSupport
PipeToSupport
Classes 
AskableActorRef
AskableActorRef$
AskableActorSelection
AskableActorSelection$
CircuitBreaker
CircuitBreaker$
CircuitBreakerOpenException$
Patterns
Patterns$
PipeToSupport.PipeableFuture
Exceptions 
AskTimeoutException
CircuitBreakerOpenException