solution class beverage(object)def get_description(self)return "beveragedef get_cost(self)return class coffee(beverage)#class beveragedecorator(beverage)def __init__(selfbeverage)super(beveragedecoratorself__init__(not really needed here self beverage beverage class milk(beveragedecorator)def get_description(self)#def get_cost(self)#coffee_with_milk milk(coffee()