{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"impl<'tcx>"}]}
            impl<'tcx> $crate::ty::TypeFoldable<$crate::ty::TyCtxt<'tcx>> for $ty {
        $(
                fn try_fold_with<F: $crate::ty::FallibleTypeFolder<$crate::ty::TyCtxt<'tcx>>>(