import { DeepReadonly, Ref } from 'vue';
interface IUseResizeObserver {
    resizeRef: Ref<HTMLElement | undefined>;
    contentRect: DeepReadonly<Ref<DOMRectReadOnly | undefined>>;
}
export declare function useResizeObserver(callback?: ResizeObserverCallback, box?: 'content' | 'border'): IUseResizeObserver;
export {};
