import { ReactElement, Ref } from 'react';
export type WaterfallItemProps = {
    ref: Ref<HTMLElement>;
    onLoad(): void;
    child: ReactElement<any>;
};
export declare const WaterfallItem: ({ ref, onLoad, child }: WaterfallItemProps) => ReactElement<any, string | import("react").JSXElementConstructor<any>>;