code: def process_request(self, request):
          
          if self._is_enabled():
              self._cache.set(self.guid_key, six.text_type(uuid4()))
              log_prefix = self._log_prefix(u"Before", request)
              self._cache.set(self.memory_data_key, self._memory_data(log_prefix))
docs: Store memory data to log later.