text: 
  from abc import ABC, abstractmethod
  
  from django.apps import AppConfig
  
  
  class AiravataAppConfig(AppConfig, ABC):
      """Custom AppConfig for Django Airavata apps."""
  
      @property
      @abstractmethod
      def url_app_name(self):
          """Return the urls application namespace (typically, same as label)."""
          pass
  
      @property
      @abstractmethod
      def app_order(self):
          """Return positive int order of app in listings, lowest sorts first."""
          pass
  
      @property
      @abstractmethod
      def url_home(self):
          """Named route of home page for this application."""
          pass
  
      @property
      @abstractmethod
      def fa_icon_class(self):
          """Font Awesome icon class name."""
          pass
  
      @property
      @abstractmethod
      def app_description(self):
          """Some user friendly text to briefly describe the application."""
          pass
  