old_contents: 
  from django.apps import AppConfig
  from django.utils.translation import ugettext_lazy as _
  
  default_app_config = 'leonardo_admin_sso.Config'
  
  LEONARDO_OPTGROUP = 'Admin SSO'
  LEONARDO_APPS = ['leonardo_admin_sso', 'admin_sso']
  
  LEONARDO_AUTH_BACKENDS = [
      'admin_sso.auth.DjangoSSOAuthBackend',
  ]
  
  LEONARDO_CONFIG = {
      'DJANGO_ADMIN_SSO_OAUTH_CLIENT_ID': ('8082..', _(
          'OAuth Client ID')),
      'DJANGO_ADMIN_SSO_OAUTH_CLIENT_SECRET': ('secret', _(
          'OAuth Client Secret')),
      'DJANGO_ADMIN_SSO_ADD_LOGIN_BUTTON': (True, _(
          'Show Login Button for SSO'))
  }
  
  
  class Config(AppConfig):
      name = 'leonardo_admin_sso'
      verbose_name = "leonardo-admin-sso"
  
      def ready(self):
  
          import leonardo.site
          leonardo.site.leonardo_admin.login_template = 'admin_sso/login.html'
  
          # monkey path settings
          from django.conf import settings as django_settings
          from admin_sso import settings
          for key in list(LEONARDO_CONFIG.keys()):
              setattr(settings, key, getattr(django_settings, key, None))
  
new_contents: 
  from django.apps import AppConfig
  from django.utils.translation import ugettext_lazy as _
  
  default_app_config = 'leonardo_admin_sso.Config'
  
  LEONARDO_OPTGROUP = 'Admin SSO'
  LEONARDO_APPS = ['leonardo_admin_sso', 'admin_sso']
  
  LEONARDO_AUTH_BACKENDS = [
      'admin_sso.auth.DjangoSSOAuthBackend',
  ]
  
  LEONARDO_CONFIG = {
      'DJANGO_ADMIN_SSO_OAUTH_CLIENT_ID': ('8082..', _(
          'OAuth Client ID')),
      'DJANGO_ADMIN_SSO_OAUTH_CLIENT_SECRET': ('secret', _(
          'OAuth Client Secret')),
      'DJANGO_ADMIN_SSO_ADD_LOGIN_BUTTON': (True, _(
          'Show Login Button for SSO'))
  }
  
  
  class Config(AppConfig):
      name = 'leonardo_admin_sso'
      verbose_name = "leonardo-admin-sso"
  
      def ready(self):
  
          import leonardo.site
          leonardo.site.leonardo_admin.login_template = 'admin_sso/login.html'
  
          # monkey patch settings
          from django.conf import settings as django_settings
          from admin_sso import settings
          for key in list(LEONARDO_CONFIG.keys()):
              setattr(settings, key, getattr(django_settings, key, None))
  
subject: fix spelling