如何在App Delegate中使用Firebase配置Pusher Beams SDK？

import Firebase
import PushNotifications

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    FirebaseApp.configure()
    
    PushNotifications.shared.start(instanceId: "YOUR_PUSHER_BEAMS_INSTANCE_ID")
    PushNotifications.shared.registerForRemoteNotifications()
    
    return true
}

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

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    PushNotifications.shared.handleNotification(userInfo: userInfo)
    completionHandler(.newData)
}