RegistrationNotification.swift

//Registration
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool
    UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { (granted, error) in
        // Enable or disable features based on authorization.
    }
}
//UNAuthorizationOptions
public struct UNAuthorizationOptions : OptionSet {
    public init(rawValue: UInt)
    public static var badge: UNAuthorizationOptions { get }
    public static var sound: UNAuthorizationOptions { get }
    public static var alert: UNAuthorizationOptions { get }
    public static var carPlay: UNAuthorizationOptions { get }
}

//Token Registration
UIApplication.shared().registerForRemoteNotifications()

func application(_ application: UIApplication,
                     didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
...
}