import { HistoryRecord } from "./recovery.js";
export declare function queueJsonlWrite<T>(operation: () => Promise<T>, fallback: () => T): Promise<T>;
export declare function partitionByRetention(records: readonly HistoryRecord[], limit: number): {
    kept: HistoryRecord[];
    pruned: HistoryRecord[];
};
export declare function upsertJsonl(record: HistoryRecord): Promise<HistoryRecord>;