{"ast_node_type":"function","tokens":[{"end":65,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn offset(&self, line_col: LineCol) -> Option<TextSize> {
    /// Transforms the `LineCol` into a `TextSize`.
        self.start_offset(line_col.line as usize).map(|start| start + TextSize::from(line_col.col))