{"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"ast::GenericArg::TypeArg(type_arg)"}]}
        ast::GenericArg::TypeArg(type_arg) => {
        // anyway, we don't really need to distinguish them here.
            result.types_and_consts.push(TypeOrConst::Either(type_arg))