@classmethod
def add_parser_arguments(cls, parser, interpreter, meta, app_data):
    """Add CLI arguments for the creator.

        :param parser: the CLI parser
        :param interpreter: the interpreter we're asked to create virtual environment for
        :param meta: value as returned by :meth:`can_create`
        """
    parser.add_argument('dest', help='directory to create virtualenv at',
        type=cls.validate_dest)
    parser.add_argument('--clear', dest='clear', action='store_true', help=
        'remove the destination directory if exist before starting (will overwrite files otherwise)'
        , default=False)
