code: def get_schema_for_game(self, appID, language=None, format=None):
          
          parameters = {'appid' : appID}
          if format is not None:
              parameters['format'] = format
          if language is not None:
              parameters['l'] = language
          else:
              parameters['l'] = self.language
          url = self.create_request_url(self.interface, 'GetSchemaForGame', 2,
              parameters)
          data = self.retrieve_request(url)
          return self.return_data(data, format=format)
docs: Request the available achievements and stats for a game.
  
          appID: The app id
          language: The language to return the results in. None uses default.
          format: Return format. None defaults to json. (json, xml, vdf)