NORIKIM

import FirebaseMessaging

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        FirebaseApp.configure()
        
        Messaging.messaging().delegate = self
        

NORIKIM

import UIKit
import Firebase
import UserNotifications

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {


    // 단순 코드 분리용
    // userNotification 딜리게이트 채택을 위함

NORIKIM

import UIKit
import FirebaseAuth
import AuthenticationServices
import CryptoKit

class LoginApple: UIViewController {
    private var currentNonce: String?
}

extension LoginApple: ASAuthorizationControllerDelegate, ASAuthorizationControllerPresentationContextProviding {