code: def render_request(self, sort=True):
          
          if not sort:
              return ("; ".join(
                  cookie.render_request() for cookie in self.values()))
          return ("; ".join(sorted(
              cookie.render_request() for cookie in self.values())))
docs: Render the dict's Cookie objects into a string formatted for HTTP
          request headers (simple 'Cookie: ' style).