old_contents: from enum import Enum
  
  
  class Status(Enum):
      ok = 1              # green
      maintenance = 2     # blue
      minor = 3           # yellow
      major = 4           # orange
      critical = 5        # red
      unavailable = 6     # gray
  
  
  class Service(object):
  
      @property
      def id(self):
          return self.__class__.__name__
  
      @property
      def status_url(self):
          raise NotImplemented()
  
      @property
      def name(self):
          raise NotImplemented()
  
      def get_status(self):
          raise NotImplemented()
  
new_contents: from enum import Enum
  
  
  class Status(Enum):
      ok = 1              # green
      maintenance = 2     # blue
      minor = 3           # yellow
      major = 4           # orange
      critical = 5        # red
      unavailable = 6     # gray
  
  
  class Service(object):
  
      @property
      def id(self):
          return self.__class__.__name__
  
      @property
      def status_url(self):
          raise NotImplemented()
  
      @property
      def icon_url(self):
          raise NotImplemented()
  
      @property
      def name(self):
          raise NotImplemented()
  
      def get_status(self):
          raise NotImplemented()
  
subject: Add icon_url as abstract property