{"ast_node_type":"variable","tokens":[{"end":65,"kind":"keyword","start":0,"text":"let"}]}
            let doc = beautify_doc_string(doc_str, comment_kind);
        if let Some((doc_str, comment_kind)) = attr.doc_str_and_comment_kind() {
            let (span, kind, from_expansion) = if attr.is_doc_comment() {