old_contents: 
  from django.apps import AppConfig
  from django.utils.translation import ugettext_lazy as _
  
  default_app_config = 'leonardo_polls.Config'
  
  LEONARDO_APPS = [
      'polls',
  ]
  
  LEONARDO_PUBLIC = True
  
  class Default(object):
  
      optgroup = 'Polls'
  
      apps = [
          'leonardo_polls'
      ]
  
      widgets = [
          'leonardo_polls.widget.polls.models.PollsWidget'
      ]
  
      @property
      def plugins(self):
          return [
              ('polls.urls', 'Polls'),
          ]
  
  
  class Config(AppConfig):
      name = 'leonardo_polls'
      verbose_name = "leonardo-polls"
  
  default = Default()
new_contents: 
  from django.apps import AppConfig
  from django.utils.translation import ugettext_lazy as _
  
  default_app_config = 'leonardo_polls.Config'
  
  class Default(object):
  
      optgroup = 'Polls'
  
      apps = [
          'leonardo_polls',
          'polls'
      ]
  
      widgets = [
          'leonardo_polls.widget.polls.models.PollsWidget'
      ]
  
      public = True
  
      @property
      def plugins(self):
          return [
              ('polls.urls', 'Polls'),
          ]
  
  
  class Config(AppConfig):
      name = 'leonardo_polls'
      verbose_name = "leonardo-polls"
  
  default = Default()
subject: update init