import React from "react";
interface states {
    count: number;
    indices: number[];
}
/**
 * Calculate element(s) dimensions
 * @param elements Observed elments count
 * @param updateCallback Update callback
 * @param miliseconds Miliseconds to wait before update
 * @param equalCallback Equall callback
 */
export declare function useDimensions(elements: number, updateCallback?: (target: Element, rect: DOMRect) => boolean | void, miliseconds?: number, equalCallback?: (d1?: DOMRect, d2?: DOMRect) => boolean): {
    dimensions: [(instance: Element | null) => void | React.DO_NOT_USE_OR_YOU_WILL_BE_FIRED_CALLBACK_REF_RETURN_VALUES[keyof React.DO_NOT_USE_OR_YOU_WILL_BE_FIRED_CALLBACK_REF_RETURN_VALUES], (Element | undefined)?, (DOMRect | undefined)?][];
    state: states;
};
export {};