old_contents: import menus
  import auth
  import click
  
  
  def main():
      """Main function"""
      credentials = auth.authenticate_user()
  
      if credentials:
          menus.main_menu(credentials)
      else:
          click.echo("Bye!")
  
  if __name__ == '__main__':
      main()
  
new_contents: import menus
  import auth
  import click
  
  
  def main():
      """Main function"""
      credentials = auth.authenticate_user()
  
      if credentials:
          menus.main_menu(credentials)
  
      click.echo("Bye!")
  
  if __name__ == '__main__':
      main()
  
subject: Fix to ensure program echos "bye" whenever program is quit