/// <reference types="react" />
import { GroupedData } from '../data-view.types';
interface UseStickyGroupAnchorParams<TData> {
    enabled: boolean;
    groupHeaderList: {
        index: number;
        start: number;
        data: GroupedData<TData>;
    }[];
    scrollContainerRef: React.RefObject<HTMLDivElement | null>;
}
interface UseStickyGroupAnchorResult<TData> {
    stickyGroup: GroupedData<TData> | null;
    stickyGroupIndex: number | null;
    recompute: () => void;
}
/**
 * Tracks the active group for a virtualized sticky group anchor. Picks the
 * latest group whose `start` offset has been scrolled past so the anchor's
 * content stays in sync with the natural section header underneath.
 *
 * The consumer hides the natural row at `stickyGroupIndex` so it doesn't slide
 * past the anchor.
 */
export declare function useStickyGroupAnchor<TData>({ enabled, groupHeaderList, scrollContainerRef }: UseStickyGroupAnchorParams<TData>): UseStickyGroupAnchorResult<TData>;
export {};
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