Stop this actor system. This will stop the guardian actor, which in turn will recursively stop all its child actors, then the system guardian (below which the logging actors reside) and the execute all registered termination handlers ([!:ActorSystem.RegisterOnTermination]).

public override void Shutdown()

Public Overrides Sub Shutdown

public:
virtual void Shutdown() override

abstract Shutdown : unit -> unit 
override Shutdown : unit -> unit