import { ExtractPropTypes } from 'vue';
import type Backtop from './Backtop.vue';
export declare const backtopEmits: {
    click: (evt: MouseEvent) => boolean;
};
export declare const backtopProps: {
    visibilityHeight: {
        type: NumberConstructor;
        default: number;
    };
    target: {
        type: StringConstructor;
        default: string;
    };
    right: {
        type: NumberConstructor;
        default: number;
    };
    bottom: {
        type: NumberConstructor;
        default: number;
    };
};
export declare type BacktopProps = ExtractPropTypes<typeof backtopProps>;
export declare type BacktopEmits = typeof backtopEmits;
export declare type BacktopInstance = InstanceType<typeof Backtop>;