block3.swift

import UserNotifications

struct Notification {
    var id: String
    var title: String
}

class LocalNotificationManager {
    var notifications = [Notification]()
    
    func requestPermission() -> Void {
        UNUserNotificationCenter
            .current()
            .requestAuthorization(options: [.alert, .badge, .alert]) { granted, error in
                if granted == true && error == nil {
                    // We have permission!
                }
        }
    }
}