import React from 'react';
declare type UseRectOptions = {
    /** A reference to the element whose rect to observe */
    refToObserve: React.RefObject<HTMLElement | SVGElement>;
    /** Whether we want to currently observe or not */
    isObserving: boolean;
    shouldResetWhenNotObserving?: boolean;
};
/**
 * Use this custom hook to get access to an element's rect (getBoundingClientRect)
 * and observe it along time.
 */
export declare function useRect({ refToObserve, isObserving, shouldResetWhenNotObserving }: UseRectOptions): ClientRect | undefined;
export {};