def fill_subparser(subparser):
    """Sets up a subparser to convert the ILSVRC2012 dataset files.

    Parameters
    ----------
    subparser : :class:`argparse.ArgumentParser`
        Subparser handling the `ilsvrc2012` command.

    """
    subparser.add_argument(
        "--shuffle-seed", help="Seed to use for randomizing order of the "
                               "training set on disk.",
        default=config.default_seed, type=int, required=False)
    return convert_ilsvrc2012