import type { GroupBuilderFactory, NotificationItem } from './grouping.js';
export declare const createAlgoLookbackGroupBuilder: GroupBuilderFactory;
/** Split newest-first notifications into lookback windows, without a size cap. */
export declare const splitLookbackBursts: (items: NotificationItem[], now: number, timeSpanMultiplier: number) => NotificationItem[][];
//# sourceMappingURL=algoLookback.d.ts.map