{"ast_node_type":"variable","tokens":[{"end":79,"kind":"keyword","start":0,"text":"if"}]}
    if let Some(Attribute::Parsed(AttributeKind::ShouldPanic { reason, .. })) =
fn should_panic(cx: &ExtCtxt<'_>, i: &ast::Item) -> ShouldPanic {
        AttributeParser::parse_limited(