{"ast_node_type":"other","tokens":[{"end":38,"kind":"keyword","start":0,"text":"parse_single_integer(cx,"}]}
        parse_single_integer(cx, args)
    fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
            .map(|n| AttributeKind::RustcLayoutScalarValidRangeEnd(Box::new(n), cx.attr_span))