{"ast_node_type":"variable","tokens":[{"end":72,"kind":"keyword","start":0,"text":"let"}]}
                let ty::OutlivesPredicate::<_, _>(a, b) = type_outlives;
            ClauseKind::TypeOutlives(type_outlives) => {
                crate::ty::ClauseKind::TypeOutlives(crate::ty::OutlivesPredicate(