{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"Some(DepNodeColor::Green(dep_node_index))"}]}
            Some(DepNodeColor::Green(dep_node_index)) => Some((prev_index, dep_node_index)),
        match self.colors.get(prev_index) {
            Some(DepNodeColor::Red) => None,