@classmethod
def setUpClass(cls):
    cls._np_rand_state = np.random.get_state()
    cls._py_rand_state = random.getstate()
    cls.SEED = 2021
    np.random.seed(cls.SEED)
    random.seed(cls.SEED)
    paddle.enable_static()
@classmethod
def setUpClass(cls):
    cls._np_rand_state = np.random.get_state()
    cls._py_rand_state = random.getstate()
    cls.SEED = 2021
    np.random.seed(cls.SEED)
    random.seed(cls.SEED)
    paddle.enable_static()