@staticmethod
def get_mobject_key(mobject: 'Mobject') -> int:
    mobject.save_state()
    mobject.center()
    mobject.set_height(1)
    result = hash(np.round(mobject.points, 3).tobytes())
    mobject.restore()
    return result
@staticmethod
def get_mobject_key(mobject: 'Mobject') -> int:
    mobject.save_state()
    mobject.center()
    mobject.set_height(1)
    result = hash(np.round(mobject.points, 3).tobytes())
    mobject.restore()
    return result