Funny decorator

rusty_method.py

import functools
class rusty_method(object):
    def __init__(self, hits, chain_effect):
        self.hits = hits
        self.chain_effect = chain_effect
        self.hit_memory = []

    def __call__(self, func):
        def aux(that, *args):
            self.hit_memory.append(args)
            if self.hits > 0:
                self.hits -= 1
            else:
                cols = zip(*self.hit_memory)
                self.hit_memory.pop()
                arguments = [reduce(self.chain_effect, col)
                                for col in cols]
                return func(that, *arguments)
        functools.update_wrapper(aux, func)
        return aux