如何使非类类型符合类协议？

def add_class_protocol(obj):
    obj.__class__ = MyClass
    obj.__init__ = MyClass.__init__
    obj.__str__ = MyClass.__str__
    # 添加其他类协议的方法和属性
    return obj

@add_class_protocol
def my_function():
    # 函数的具体实现
    pass

class MyList(list):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

    def __str__(self):
        return "MyList: " + super().__str__()

my_list = MyList([1, 2, 3])
print(my_list)  # 输出：MyList: [1, 2, 3]

class MyClass:
    def __init__(self, value):
        self.value = value

    def __str__(self):
        return "MyClass: " + str(self.value)

def make_duck_type(obj):
    obj.__init__ = MyClass.__init__
    obj.__str__ = MyClass.__str__
    # 添加其他类协议的方法和属性
    return obj

my_tuple = make_duck_type((1, 2, 3))
print(my_tuple)  # 输出：MyClass: (1, 2, 3)