{"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"SubregionOrigin::Reborrow(a)"}]}
            SubregionOrigin::Reborrow(a) => a,
            SubregionOrigin::RelateRegionParamBound(a, _) => a,
            SubregionOrigin::ReferenceOutlivesReferent(_, a) => a,