code: def parse(self, content):
      
      if self.format == 'json_map':
        try:
          return assert_list(json.loads(content.decode(self.encoding))[self.index])
        except (KeyError, UnicodeDecodeError, ValueError) as e:
          raise self.ResponseParserError("Error while parsing response content: {0}".format(str(e)))
  
      # Should never get here.
      raise ValueError('Unknown content format: "{}"'.format(self.format))
docs: Parse raw response content for a list of remote artifact cache URLs.
  
      :API: public