import { RefObject } from 'react';
type Size = {
    width: number;
    height: number;
};
/**
 * Returns the current size of a referenced HTML element and updates on size changes.
 * Uses ResizeObserver to listen for size changes.
 * Can be used to track dynamic size changes of elements in a React component.
 * @param ref - A React ref object pointing to the target HTML element.
 * @returns { width: number; height: number } - The current size of the element.
 */
export declare const useElementSize: <T extends HTMLElement>(ref: RefObject<T>) => Size;
export {};