Function actor_loop 

pub async fn actor_loop<A>(
    id: ActorId,
    actor: A,
    actor_type: ActorType,
    rx: Receiver<Box<dyn ActorMessageHandler<A> + Sync + Send>>,
    on_start: Option<Sender<bool>>,
    actor_ref: ActorRef<A>,
    scheduler: Option<ActorRef<ActorScheduler>>,
)
where
    A: 'static + Send + Sync + Actor,