api.get_quote_list 一次最多 取几个合约有限制么

我一下放进去20多个合约“`程序 出错  Traceback (most recent call last):

Exception: 查询合约服务报错 failed to execute graphql operation, errors: [variable instrument_id: [KQ.m@SHFE.au KQ.m@SHFE.ag KQ.m@SHFE.cu KQ.m@SHFE.al KQ.m@SHFE.zn KQ.m@SHFE.pb KQ.m@SHFE.ni KQ.m@SHFE.sn KQ.m@SHFE.rb KQ.m@DCE.i KQ.m@SHFEhc KQ.m@DCEj KQ.m@CZCEzc KQ.m@DCEjm KQ.m@CZCEfg KQ.m@SHFEfu KQ.m@SHFEbu KQ.m@INEsc KQ.m@CZCEma KQ.m@CZCEta KQ.m@DCEpp KQ.m@DCEeg KQ.m@DCEl KQ.m@SHFEru KQ.m@DCEv KQ.m@DCEc KQ.m@DCEa KQ.m@DCEcs KQ.m@DCEp KQ.m@CZCEoi KQ.m@DCEm KQ.m@CZCErm KQ.m@DCEy KQ.m@CZCEsr KQ.m@CZCEcf KQ.m@CZCEcy KQ.m@SHFEsp KQ.m@CZCEpf KQ.m@CZCEsa] contains non-existent instrument: KQ.m@SHFEhc]
Task was destroyed but it is pending!