import { useVirtualizer } from '@tanstack/react-virtual';
import type { Virtualizer } from '@tanstack/react-virtual';
/**
 * Wrapper over `useVirtualizer` from `@tanstack/react-virtual` that sets the index attribute to
 * `data-iui-index` and adds wraps the `scrollToIndex` function in a `setTimeout` so it can be used in `useLayoutEffect`.
 *
 * @example
 * const { virtualizer, css } = useVirtualScroll({
 *   count: item.length,
 *   getScrollElement: () => parentRef.current,
 *   estimateSize: () => 30,
 * });
 *
 * <Parent ref={parentRef}>
 *   <ShadowRoot css={css}>
 *     <div data-iui-virtualizer="root" style={{ height: virtualizer.getTotalSize() }}>
 *       <slot />
 *     </div>
 *   </ShadowRoot>
 *
 *   {virtualizer.getVirtualItems().map((item) => (
 *     <Item
 *       data-iui-virtualizer="item"
 *       data-iui-index={item.index}
 *       style={{ transform: `translateY(${item.start}px)`}}
 *       ref={virtualizer.measureElement}
 *     />
 *   ))}
 * </Parent>
 */
export declare const useVirtualScroll: (params: Parameters<typeof useVirtualizer>[0]) => {
    virtualizer: Virtualizer<Element, Element>;
    css: string;
};