(untypedActorFactory: StringAdd).self
(untypedActorFactory: StringFormat).self
(untypedActorFactory: ArrowAssoc[UntypedActorFactory]).x
(Since version 2.10.0) Use leftOfArrow instead
(untypedActorFactory: Ensuring[UntypedActorFactory]).x
(Since version 2.10.0) Use resultOfEnsuring instead
Factory closure for an UntypedActor, to be used with 'Actors.actorOf(factory)'.
(Since version 2.2) use Creator<T> instead