let cancellable = (0...2).publisher
    .handleEvents(receiveSubscription: { subs in
        print("Subscription: \(subs.combineIdentifier)")
        
    }, receiveOutput: { anInt in
        print("in output handler, received \(anInt)")
        
    }, receiveCompletion: { _ in
        print("in completion handler")
        
    }, receiveCancel: {
        print("received cancel")
        
    }, receiveRequest: { (demand) in
        print("received demand: \(demand.description)")
        
    })
    .sink { _ in return }