{"ast_node_type":"variable","tokens":[{"end":68,"kind":"keyword","start":0,"text":"let"}]}
            let file_name = String::from_utf8(entry.name().to_vec())
            let entry = entry.map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?;
                .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?;