def METHOD_NAME(ckpt, *args, **kwargs):
    """
    The model from local ckpt
        ckpt (str): PATH
        feature_selection (int): -1 (default, the last layer) or an int in range(0, max_layer_num)
    """
    assert os.path.isfile(ckpt)
    return _UpstreamExpert(ckpt, *args, **kwargs)