import * as React from 'react';
export declare const VIRTUAL_OVERSCAN = 5;
export interface ComboboxVirtualListProps<Item> {
    items: readonly Item[];
    /** Estimated row block-size in px. */
    estimateSize?: number;
    /** Index (into `items`) of the highlighted option; kept inside the window. */
    activeIndex?: number | undefined;
    children: (item: Item, index: number) => React.ReactNode;
}
interface WindowRange {
    start: number;
    end: number;
}
export declare function windowFor(scrollTop: number, viewPx: number, estimateSize: number, count: number): WindowRange;
/** scrollTop that brings row `index` fully into a `viewPx` viewport (unchanged when already visible). */
export declare function scrollTopFor(index: number, scrollTop: number, viewPx: number, estimateSize: number): number;
export declare function ComboboxVirtualList<Item>({ items, estimateSize, activeIndex, children }: ComboboxVirtualListProps<Item>): React.JSX.Element;
export {};
//# sourceMappingURL=ComboboxVirtualList.client.d.ts.map