/**
 * QA360 Metrics Collector
 * Génère des métriques au format OpenMetrics/Prometheus
 */
export interface MetricValue {
    name: string;
    value: number;
    labels?: Record<string, string>;
    help?: string;
    type?: 'counter' | 'gauge' | 'histogram' | 'summary';
}
export declare class MetricsCollector {
    private startTime;
    constructor();
    collect(): Promise<string>;
    private gatherMetrics;
    private collectRunMetrics;
    private collectGateMetrics;
    private collectSecurityMetrics;
    private collectPerformanceMetrics;
    private getLastRunData;
    private formatOpenMetrics;
    private getVersion;
}