old_contents: __version__ = '2.0.0'
  
  
  def get_version():
      return __version__
  
new_contents: __version__ = '2.0.0'
  
  default_app_config = "axes.apps.AppConfig"
  
  
  def get_version():
      return __version__
  
subject: Add `default_app_config` so you can just use `axes` in `INSTALLED_APPS`