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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 reset(self):
 """Reset the current animation generator."""

        animation_gen = self._frame_function(*self._animation_args,
                                             **self._animation_kwargs)
        self._current_generator = itertools.cycle(
            util.concatechain(animation_gen, self._back_up_generator))