{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"(GenericParamDefKind::Lifetime,"}]}
                    (GenericParamDefKind::Lifetime, GenericArg::Lifetime(lt)) => {
                match (&param.kind, arg) {
                        self.lowerer.lower_lifetime(lt, RegionInferReason::Param(param)).into()