def METHOD_NAME():
    for device in ['cpu', 'gpu']:
        for batch_size in [1, 3, 128]:
            for border in ['zero', 'clamp', 'reflect']:
                for coef, per_sample_coeff in [(0.97, False), (0.0, False), (None, True)]:
                    yield (check_preemphasis_operator, device, batch_size, border, coef,
                           per_sample_coeff)