/**
 * Looks for the best possible fit of rows and columns for a given size and a given number of squares that will be placed inside
 * @param containerWidth -
 * @param containerHeight -
 * @param childCount -
 */
export declare function calculateGridLayout(containerWidth: number, containerHeight: number, childCount: number): {
    columnCount: number;
    rowCount: number;
    lastRowColumnCount: number;
    gap: string;
};