{"ast_node_type":"function","tokens":[{"end":85,"kind":"keyword","start":0,"text":"fn"}]}
    fn set_style(&mut self, line: usize, col: usize, style: Style, overwrite: bool) {
    /// 2. `overwrite` is `true` or existing style is `Style::NoStyle` or `Style::Quotation`
        if let Some(ref mut line) = self.lines.get_mut(line)