{"ast_node_type":"variable","tokens":[{"end":90,"kind":"keyword","start":0,"text":"let"}]}
                        let line_idx_delta = annotated_file.lines[line_idx + 1].line_index
                    if line_idx < (annotated_file.lines.len() - 1) {
                            - annotated_file.lines[line_idx].line_index;