import React from 'react';
import type { ObserveParams } from './observe';
import { observe } from './observe';
export { observe, ObserveParams };
/**
 * AppearInViewport 参数定义
 */
export type AppearInViewportProps = ObserveParams;
export type AppearInViewportComponentProps = AppearInViewportProps & React.DetailedHTMLProps<React.HTMLAttributes<HTMLDivElement>, HTMLDivElement>;
export declare const useAppearInViewport: <BE extends HTMLElement = HTMLElement>({ onAppear, advance, threshold, repeat, onDisAppear, IntersectionObserverClass, }: AppearInViewportProps) => {
    updateBox: React.Dispatch<React.SetStateAction<BE | null>>;
    box: BE | null;
};
/**
 * @class AppearInViewport
 * 出现在页面中会自动响应（仅一次）
 *
 * @see AppearInViewportComponentProps
 */
export declare const AppearInViewport: React.ForwardRefExoticComponent<Pick<AppearInViewportComponentProps, "key" | keyof ObserveParams | keyof React.HTMLAttributes<HTMLDivElement>> & React.RefAttributes<HTMLDivElement>>;
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