new_contents: from performance.web import Response
  
  
  class Result:
      def __init__(self, result_file):
          self.result_file = result_file
          # create file
  
      def add_response(self, response):
          # check if response is Response object
          # append to data file
          pass
  
  
  class Chart:
      def __init__(self, file_path):
          self.file_path = file_path
  
      def html(self, result_data):
          # fetch data and write in html file
          pass
  
subject: Create result module with Result and Chart classes