code: def _kafka_success(self, item, spider, response):
          '''
          Callback for successful send
          '''
          item['success'] = True
          item = self._clean_item(item)
          item['spiderid'] = spider.name
          self.logger.info("Sent page to Kafka", itemf _kafka_success(self, item, spider, response):
          '''
          Callback for successful send
          '''
          item['success'] = True
          item = self._clean_item(item)
          item['spiderid'] = spider.name
          self.logger.info("Sent page to Kafka", item)
docs: Callback for successful send