{"ast_node_type":"variable","tokens":[{"end":60,"kind":"keyword","start":0,"text":"if"}]}
        if let Some(ref mut line) = self.lines.get_mut(line)
    fn set_style(&mut self, line: usize, col: usize, style: Style, overwrite: bool) {
            && let Some(StyledChar { style: s, .. }) = line.get_mut(col)