{"ast_node_type":"variable","tokens":[{"end":70,"kind":"keyword","start":0,"text":"let"}]}
        let source_root = db.source_root(source_root).source_root(db);
        let source_root = db.file_source_root(file_id).source_root_id(db);
        let path = source_root.path_for_file(&file_id).map(|x| x.to_string());