[捣蛋 py] 虚空之鸭 VoidDuck

虚空之鸭，万能的鸭鸭，无能的鸭鸭，随你怎么对待它，鸭鸭不反抗，鸭鸭不回答

https://github.com/mo-han/mo-han-toolbox/blob/master/lib_misc.py#L29

class VoidDuck:
    """a void, versatile, useless and quiet duck, called in any way, return nothing, raise nothing"""
    def __init__(self, *args, **kwargs):
        pass

    def __getattr__(self, item):
        return self

    def __call__(self, *args, **kwargs):
        return self

    def __bool__(self):
        return False