def METHOD_NAME(self, x, scale=(2 / 3, 3 / 2), shift=(-0.2, 0.2), size=3):
    xyz1 = np.random.uniform(low=scale[0], high=scale[1], size=[size])
    xyz2 = np.random.uniform(low=shift[0], high=shift[1], size=[size])
    x = np.add(np.multiply(x, xyz1), xyz2).astype("float32")
    return x