import React from 'react';
interface NodePosition {
    elements: Set<HTMLElement>;
    bottom: number;
    top: number;
}
export declare function getRowPositionsData(containerRef: React.RefObject<HTMLElement | null>, overflowRef: React.RefObject<HTMLElement | null>): {
    itemsSizesMap: Record<number, NodePosition>;
    rowPositions: number[];
    children: HTMLElement[];
} | null;
export {};