def METHOD_NAME(test_case, device):
    targets = flow.randn((0, 6), device=flow.device(device))
    height, width = 640, 640
    targets[:, 2:] *= flow.tensor(
        (width, height, width, height), device=flow.device(device)
    )
    test_case.assertTrue(np.array_equal(targets.size(), (0, 6)))