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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def main(argv):
 """Entry point for running one selfplay game."""

    del argv  # Unused
    flags.mark_flag_as_required('load_file')

    run_game(
        load_file=FLAGS.load_file,
        selfplay_dir=FLAGS.selfplay_dir,
        holdout_dir=FLAGS.holdout_dir,
        holdout_pct=FLAGS.holdout_pct,
        sgf_dir=FLAGS.sgf_dir)