declare const _default: import("vue").DefineComponent, { prefixCls: string; levelIndent: import("vue").Ref; }, {}, {}, {}, import("vue").ComponentOptionsMixin, import("vue").ComponentOptionsMixin, {}, string, import("vue").PublicProps, Readonly> & Readonly<{}>, { level: number; }, {}, {}, {}, string, import("vue").ComponentProvideOptions, true, {}, any>; export default _default;