Can the callback be overwritten in the AppDelegate.swift file?

edit

Yes, the callback function can be overwritten in the AppDelegate.swift file. The callback function is defined as a delegate method and can be implemented in the AppDelegate.swift file by overriding the method. This allows for customization of the behavior when the app receives a notification, such as updating the UI or performing a specific action. However, it is important to ensure that the original functionality of the callback is not lost or modified unless intended.