public ClientRef Original(HyperionSerializer ctx) => ctx.system.ClientOf(S);
public ActorRef Original(HyperionSerializer ctx) => ctx.system.ActorOf(ActorPath.Parse(S));
public StreamRef Original(HyperionSerializer ctx) => ctx.system.StreamOf(StreamPath.Parse(S));
public StreamRef <TItem> Original <TItem>(HyperionSerializer ctx) => ctx.system.StreamOf <TItem>(StreamPath.Parse(S));