+ help='Populate config file compatible with --config_loadfile to save global config for later use.',
+)
+group.add_argument(
+ '--config_rejects_unrecognized_arguments',
+ default=False,
+ action='store_true',
+ help=(
+ 'If present, config will raise an exception if it doesn\'t recognize an argument. The ' +
+ 'default behavior is to ignore this so as to allow interoperability with programs that ' +
+ 'want to use their own argparse calls to parse their own, separate commandline args.'
+ )