code: def pack_req(cls, code, trd_env, acc_id, trd_mkt, conn_id):
          
          from futuquant.common.pb.Trd_GetOrderFillList_pb2 import Request
          req = Request()
          req.c2s.header.trdEnv = TRD_ENV_MAP[trd_env]
          req.c2s.header.accID = acc_id
          req.c2s.header.trdMarket = TRD_MKT_MAP[trd_mkt]
  
          if code:
              req.c2s.filterConditions.codeList.append(code)
  
          return pack_pb_req(req, ProtoId.Trd_GetOrderFillList, conn_id)
docs: Convert from user request for place order to PLS request