def METHOD_NAME(this, args):
    obj = get_arg(args, 0)
    prop = get_arg(args, 1)
    if not is_object(obj):
        raise MakeError(
            'TypeError',
            'Object.getOwnPropertyDescriptor called on non-object')
    desc = obj.own.get(to_string(prop))
    return convert_to_js_type(desc, args.space)