import type * as React from "react";
/** Spread, so a surface cannot wire half of it. */
export interface DomScrollSeam {
    ref: React.RefObject<HTMLDivElement | null>;
    onScroll: React.UIEventHandler<HTMLDivElement>;
}
/** Remembered scroll offsets across a content swap: a container keeps its offset when children change, so
 *  a swapped-in child record would open part-way down. While `scrollKey` holds, nothing moves; when it
 *  changes, the outgoing offset is recorded and the incoming one restored — 0 for a new key (forward opens
 *  at top), the remembered one going back. Not a React `key`, which would reset the parent too. No key
 *  change, no scrolling; an absent key is the root's identity ({@link ROOT_KEY}). */
export declare function useDomScrollSeam(scrollKey: string | undefined): DomScrollSeam;