old_contents: from django.apps import AppConfig
  
  
  class CostPlanningConfig(AppConfig):
      name = 'waldur_cost_planning'
      verbose_name = 'Cost planning'
  
      def ready(self):
          from .plugins import digitalocean, openstack_tenant, aws  # noqa: F401
  
new_contents: from django.apps import AppConfig
  
  
  class CostPlanningConfig(AppConfig):
      name = 'waldur_cost_planning'
      verbose_name = 'Cost planning'
  
subject: Remove leftover.