{"ast_node_type":"variable","tokens":[{"end":98,"kind":"keyword","start":0,"text":"let"}]}
            let curr = ThinLTOKeysMap::from_thin_lto_modules(&data, &thin_modules, &module_names);
                if path.exists() { ThinLTOKeysMap::load_from_file(&path).ok() } else { None };
            (Some(path), prev, curr)