{"ast_node_type":"function","tokens":[{"end":69,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn peek_ahead(&self) -> Option<(Range<usize>, usize, char)> {
    /// Peeks at the current position + 1, without incrementing the pointer.
        self.input_vec.get(self.input_vec_index + 1).cloned()