code: def send_response(self, code, message=None):
          
          self.log_request(code)
          self.send_response_only(code, message)
          self.send_header('Server', self.version_string())
          self.send_header('Date', self.date_time_string())
docs: Add the response header to the headers buffer and log the
          response code.
  
          Also send two standard headers with the server software
          version and the current date.