import { ExtractPropTypes, PropType } from 'vue';
declare const backtopProps: {
    /**
     * 滚动高度达到此参数值才出现
     */
    readonly visibilityHeight: {
        readonly type: PropType<number | string>;
        readonly validator: (value: number | string) => boolean;
        readonly default: 200;
    };
    /**
     * 触发滚动的对象
     */
    readonly target: {
        readonly type: PropType<string | HTMLElement>;
        readonly default: "";
    };
    /**
     * 控制其显示位置，距离页面右边距
     */
    readonly right: {
        readonly type: PropType<number | string>;
        readonly validator: (value: number | string) => boolean;
        readonly default: 60;
    };
    /**
     * 控制其显示位置，距离页面底部距离
     */
    readonly bottom: {
        readonly type: PropType<number | string>;
        readonly validator: (value: number | string) => boolean;
        readonly default: 60;
    };
};
declare const backtopEmits: {
    /**
     * 点击按钮触发的事件
     */
    click: (event: MouseEvent) => boolean;
};
export type BacktopProps = ExtractPropTypes<typeof backtopProps>;
export type BacktopEmits = typeof backtopEmits;
export { backtopEmits, backtopProps };