{"ast_node_type":"variable","tokens":[{"end":55,"kind":"keyword","start":0,"text":"let"}]}
    let krate = sema.scope(&root).map(|it| it.krate());
    let mut hl = highlights::Highlights::new(root.text_range());
    traverse(&mut hl, &sema, config, InRealFile::new(file_id, &root), krate, range_to_highlight);