code: def get_spider_stats(self, spider_name):
          
          if spider_name is None:
              spider_name = self.spider_name
          else:
              self.spider_name = spider_name
          if self.spider_name is None:
              self.spider_name = self.list_running()[0].split(':')[-1]
          return(self.jsonrpc_call('stats', 'get_stats', self.spider_name))
docs: get-spider-stats <spider> - get stats of a running spider