{"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"self.rev_scc_graph.get_or_init(||"}]}
        self.rev_scc_graph.get_or_init(|| {
    pub(super) fn reverse_scc_graph(&self) -> &ReverseSccGraph {
            ReverseSccGraph::compute(&self.constraint_sccs, self.universal_regions())