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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 fire(self, args, kwargs):
 """ Fire this signal with the specified arguments and keyword arguments. Typically this is used by using :meth:`__call__()` on this object which is more natural as it does all the argument packing/unpacking transparently. """

        for info in self._listeners[:]:
            if info.pass_signal:
                info.listener(*args, signal=self, **kwargs)
            else:
                info.listener(*args, **kwargs)