import type { QueueMetrics } from '@bull-board/api/typings/app';
export interface MinutePoint {
    /** Absolute minute index: Math.floor(timestampMs / 60000). */
    minute: number;
    value: number;
}
/**
 * Maps BullMQ's getMetrics() data (newest-first) to (minute, value) points.
 * data[i] -> minute index floor(prevTS/60000) - 1 - i. The in-progress current
 * minute is never present in data, so every point returned here is immutable.
 * BullMQ's PostgreSQL backend reports prevTS as 0, which leaves the points undatable.
 */
export declare function metricsToMinutePoints(metrics: QueueMetrics | null | undefined): MinutePoint[];