code: def QA_get_tick(code, start, end, market):
      
      res = None
      if market == MARKET_TYPE.STOCK_CN:
          res = QATdx.QA_fetch_get_stock_transaction(code, start, end)
      elif market == MARKET_TYPE.FUTURE_CN:
          res = QATdx.QA_fetch_get_future_transaction(code, start, end)
      return res
docs: 统一的获取期货/股票tick的接口