/**
 * Decode a persisted schedule record's cadence fields (`cronExpression` XOR
 * `intervalMs`). Split out of `schedule.ts` purely to stay under this
 * repository's 500-line-per-file ceiling (the same precedent
 * `lifecycle/start.ts`/`decode-revision.ts` set for WFT-17/18) — there is no
 * behavioral reason to import this module directly instead of `schedule.ts`,
 * which re-exports nothing from here because `decodeScheduleCadence` is
 * consumed only by `decodeScheduleIdentityFields` in that file.
 *
 * @module core/engine/validation/schedule-cadence
 */
/** Decode the cadence fields (`cronExpression` XOR `intervalMs`) of a persisted schedule record, or `null` (and warn) on a malformed record. */
export declare function decodeScheduleCadence(decoded: Record<string, unknown>, scheduleId: string): {
    cronExpression?: string;
    intervalMs?: number;
} | null;