import { type ParsedCron } from './cron.js';
/** Slot granularity. Every slot timestamp satisfies `slot % SLOT_MS === 0`. */
export declare const SLOT_MS = 60000;
/** Reserved job-type prefix for cron occurrences. */
export declare const CRON_PREFIX = "cron:";
/** How far back either catch-up mode will look. */
export declare const DEFAULT_CATCH_UP_WINDOW_MS: number;
export type CatchUp = 'latest' | 'all';
/** Aligns `ms` down to its containing slot. */
export declare function floorSlot(ms: number): number;
/**
 * Slots matching `cron` in the half-open range `(from, to]`, oldest first.
 *
 * `from` is exclusive so a stored watermark is never re-emitted. Both modes are
 * clamped to `catchUpWindowMs` — without it a watermark far in the past would
 * make this iterate unbounded minutes.
 */
export declare function slotsDue(args: {
    cron: ParsedCron;
    from: number;
    to: number;
    catchUp?: CatchUp;
    catchUpWindowMs?: number;
}): number[];
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