{"ast_node_type":"variable","tokens":[{"end":69,"kind":"keyword","start":0,"text":"let"}]}
                    let end = line_index.line_col(range.range.end());
                    let start = line_index.line_col(range.range.start());
                    println!("{severity:?} {code:?} from {start:?} to {end:?}: {message}");