def is_list(self):
        return self.nargs != 0 and self.nargs != 1
For the containing item. This will return null if the item is in
dataset/ETHPy150Open thasso/pyjip/jip/options.py/Option.is_list--crossover with--dataset/ETHPy150Open rwl/muntjac/muntjac/ui/menu_bar.py/MenuItem.getParent