{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"check_type_alias_type_params_are_used(tcx,"}]}
            check_type_alias_type_params_are_used(tcx, def_id);
            tcx.ensure_ok().predicates_of(def_id);
            if tcx.type_alias_is_lazy(def_id) {