public protocol UpperNotificationViewType: class {

    /**
     - parameter manualDismissClosure: Call this closure to dismiss the notification view
     */
    func didPrepare(dismissClosure: () -> Void)

    func willAppear()
    func didAppear()

    func willDisappear()
    func didDisappear()
}

class MyNotification: UpperNotificationViewType { … }

public protocol UpperNotificationAnimatorType {

    func applyPresentAnimation<T where T: UpperNotificationViewType, T: UIView>(notificationView notificationView: T, completion: () -> Void)

    func applyDismissAnimation<T where T: UpperNotificationViewType, T: UIView>(notificationView notificationView: T, completion: () -> Void)
}

struct MyAnimator: UpperNotificationViewType { ... }

let notificationController = UpperNotificationController()

let notification = NotificationContext<SampleNotificationView> {
    SampleNotificationView()
}

notificationController.deliver(notification: notification, animator: Animator())