export interface TaskQueueFailure {
    id: string;
    platform: string;
    error: string;
    attempts: number;
}
export interface TaskQueueStats {
    pending: number;
    processing: number;
    completed_last_hour: number;
    failed_last_hour: number;
    oldest_pending_age_seconds: number;
    recent_failures: TaskQueueFailure[];
}
export declare const ZERO_TASK_QUEUE_STATS: TaskQueueStats;
export declare function normalizeTaskQueueStats(value: unknown): TaskQueueStats;
export declare function getDispatchTaskQueueStats(): Promise<TaskQueueStats>;
export declare function formatQueueAgeSeconds(seconds: number): string;
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