/**
 * example:
 * getChildProps(
 *   <>
 *     <div app="youkuohao" version="1.0.0"></div>
 *     <div></div>
 *   </>,
 *  'div'
 * )
 *
 * each operation cost: about 0.5ms
 */
export declare function getChildProps<T extends {
    [x: string]: any;
}>(inputChildren: any, displayName: string): T;