def _augment(self, img):
        if img.coords:
            raise NotImplementedError()
        v = 0.5 - self.rng.rand(self.K, 2).astype('float32')
        v = v * 2 * self.randrange
        grid = self.grid + np.dot(self.gws, v)
        img.arr = np_sample(img.arr, grid)
dataset/ETHPy150Open ppwwyyxx/tensorpack/tensorpack/dataflow/imgaug/deform.py/GaussianDeform._augment/swapped operands of `-`