/**
 * Eligible transactions wait behind current persistence. A new callback for
 * the same transaction replaces its pending work; distinct transactions from
 * managers sharing one strategy retain their own callbacks. `wait` bounds
 * actual starts independently of a strategy's admission timer.
 */
export declare function createSerialPacer(wait: number): {
    schedule(callback: () => Promise<unknown>, owner?: {}): void;
    hasPending(owner?: object): boolean;
    cancel(owner?: object): void;
};