{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"hir_bounds:"}]}
        hir_bounds: &'tcx [hir::GenericBound<'tcx>],
        self_ty: Ty<'tcx>,
        self_ty_where_predicates: Option<(LocalDefId, &'tcx [hir::WherePredicate<'tcx>])>,