code: def set_max_price(self, max_price):
          
  
          if not isinstance(max_price, int):
              raise DaftException("Max price should be an integer.")
  
          self._max_price = str(max_price)
          self._price += str(QueryParam.MAX_PRICE) + self._max_price
docs: The maximum price.
          :param max_price:
          :return: