{"ast_node_type":"function","tokens":[{"end":64,"kind":"keyword","start":0,"text":"fn"}]}
fn source_string(file: Arc<SourceFile>, line: &Line) -> String {
/// Provides the source string for the given `line` of `file`
    file.get_line(line.line_index - 1).map(|a| a.to_string()).unwrap_or_default()