{"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"self_ty_where_predicates:"}]}
        self_ty_where_predicates: Option<(LocalDefId, &'tcx [hir::WherePredicate<'tcx>])>,
        hir_bounds: &[hir::GenericBound<'tcx>],
        span: Span,