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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 seed_args(subparsers):
 """Add command line options for the seed operation"""

    seed_parser = subparsers.add_parser('seed')
    secretfile_args(seed_parser)
    vars_args(seed_parser)
    seed_parser.add_argument('--mount-only',
                             dest='mount_only',
                             help='Only mount paths if needed',
                             default=False,
                             action='store_true')
    thaw_from_args(seed_parser)
    seed_parser.add_argument('--remove-unknown',
                             dest='remove_unknown',
                             action='store_true',
                             help='Remove mountpoints that are not '
                             'defined in the Secretfile')
    base_args(seed_parser)