{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"$builder.open($crate::tt::DelimiterKind::$delim,"}]}
            $builder.open($crate::tt::DelimiterKind::$delim, $span);
        {
            $crate::builtin::quote::__quote!($span $builder  $($tt)*);