import type { PropType } from 'vue';
import type { ExtractPublicPropTypes } from '../_util/interface';
export declare const backTopProps: {
    readonly target: {
        readonly type: PropType<HTMLElement>;
    };
    readonly visibilityHeight: {
        readonly type: NumberConstructor;
        readonly default: 200;
    };
    readonly right: {
        readonly type: NumberConstructor;
        readonly default: 40;
    };
    readonly bottom: {
        readonly type: NumberConstructor;
        readonly default: 40;
    };
};
export type BackTopProps = ExtractPublicPropTypes<typeof backTopProps>;
export declare const backTopEmits: {
    click: (event: MouseEvent) => boolean;
};
export type BackTopEmits = typeof backTopEmits;
