/**
 * This source code is quoted from rc-animate.
 * homepage: https://github.com/react-component/animate
 */
import React, { Key, ReactElement } from 'react';
export declare function toArrayChildren(children: ReactElement): React.ReactElement<any, string | React.JSXElementConstructor<any>>[];
export declare function findChildInChildrenByKey(children: ReactElement[], key: Key | null): any;
export declare function findShownChildInChildrenByKey(children: ReactElement[], key: Key | null, showProp: string): any;
export declare function findHiddenChildInChildrenByKey(children: ReactElement[], key: Key | null, showProp: string): number;
export declare function isSameChildren(c1: ReactElement[], c2: ReactElement[], showProp?: string): boolean;
export declare function mergeChildren(prev: ReactElement[], next: ReactElement[]): any;