When I send notification from Firebase Console, it comes to the app, but when I tap on the notification banner, function userNotificationCenter(_:didReceive:withCompletionHandler:) should be called and print the text “didReceive method is called“, but no such text appears. What is wrong with my code?

When I send notification from Firebase Console, it comes to the app, but when I tap on the notification banner, function userNotificationCenter(_:didReceive:withCompletionHandler:) should be called and print the text “didReceive method is called”, but no such text appears. What is wrong with my code?