declare const _sfc_main: import("vue").DefineComponent<{}, {
    btnShow: import("vue").Ref<boolean>;
    timer: any;
    backTop: () => void;
    scrollToTop: () => void;
}, {}, {}, {}, import("vue").ComponentOptionsMixin, import("vue").ComponentOptionsMixin, {}, string, import("vue").VNodeProps & import("vue").AllowedComponentProps & import("vue").ComponentCustomProps, Readonly<import("vue").ExtractPropTypes<{}>>, {}>;
export default _sfc_main;