Sample ApplicationService implementation

LoggerApplicationService.swift

import Foundation
import PluggableApplicationDelegate

final class LoggerApplicationService: NSObject, ApplicationService {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {
        print("It has started!")
        return true
    }
    
    func applicationDidEnterBackground(_ application: UIApplication) {
        print("It has entered background")
    }
}