code: def set_lane_list(self, value):
          
          if value is None or not isinstance(value, list):
              raise TypeError("LaneList new value must be a list")
          else:
              for element in value:
                  if not isinstance(element, lane.Lane):
                      raise TypeError("LaneList elements in variable must be of Lane class")
              self.__lane_list = value
docs: Setter for 'lane_list' field.
          :param value - a new value of 'lane_list' field. Must be a list of Lane objects