{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"|"}]}
            | Rvalue::NullaryOp(NullOp::UbChecks, _) => tcx.types.bool,
            Rvalue::NullaryOp(NullOp::ContractChecks, _)
            Rvalue::Aggregate(ref ak, ref ops) => match **ak {