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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _set_last_aid(func):
 """Decorator for setting last_aid."""

    @functools.wraps(func)
    def new_func(self, *args, **kwargs):
        # pylint: disable=missing-docstring
        aid = func(self, *args, **kwargs)
        self.last_aid = aid
        return aid
    return new_func