[010]save_state/restore

class RestoreTest(Scene):
    def construct(self):
        dot = Dot()
        dot.save_state()
        self.add(dot)

        self.play(dot.shift, 2 * UP)
        self.wait()

        self.play(dot.shift, 5 * DOWN)
        self.wait()

        self.play(dot.restore)
        self.wait()