old_contents: from ._abstract import AbstractScraper
  
  
  class Chefkoch(AbstractScraper):
      @classmethod
      def host(cls, domain="de"):
          return f"chefkoch.{domain}"
  
      def title(self):
          return self.schema.title()
  
      def total_time(self):
          return self.schema.total_time()
  
      def yields(self):
          return self.schema.yields()
  
      def image(self):
          return self.schema.image()
  
      def ingredients(self):
          return self.schema.ingredients()
  
      def instructions(self):
          return self.schema.instructions()
  
      def ratings(self):
          return self.schema.ratings()
  
new_contents: from ._abstract import AbstractScraper
  
  
  class Chefkoch(AbstractScraper):
      @classmethod
      def host(cls):
          return "chefkoch.de"
  
      def title(self):
          return self.schema.title()
  
      def total_time(self):
          return self.schema.total_time()
  
      def yields(self):
          return self.schema.yields()
  
      def image(self):
          return self.schema.image()
  
      def ingredients(self):
          return self.schema.ingredients()
  
      def instructions(self):
          return self.schema.instructions()
  
      def ratings(self):
          return self.schema.ratings()
  
subject: Update chefkoch.py according to PR request