import { default as React } from 'react';
import { CollapsibleApi } from './collapsible.js';
export interface LastKnownExpandedSizeApi<TElement extends Element = HTMLElement> {
    setRef: React.Ref<TElement>;
    style: React.CSSProperties;
}
export declare const useLastKnownExpandedSize: <TElement extends Element = HTMLElement>(collapsibleApi: CollapsibleApi<TElement>) => LastKnownExpandedSizeApi<TElement>;