{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"self.universal_region_relations.outlives(r1,"}]}
                self.universal_region_relations.outlives(r1, r2)
            choice_regions.iter().all(|&r2| {
                    || self.universal_region_relations.outlives(r2, r1)