interface MetricLabels {
    method: string;
    path: string;
    status: string;
}
declare class PrometheusRegistry {
    private readonly httpRequestsTotal;
    private readonly httpRequestDurationMs;
    incrementHttpRequest(labels: MetricLabels): void;
    observeHttpDuration(labels: MetricLabels, durationMs: number): void;
    renderMetrics(): string;
    resetForTests(): void;
    getHttpRequestSummary(): {
        totalRequests: number;
        byStatus: Record<string, number>;
        topPaths: Array<{
            method: string;
            path: string;
            count: number;
        }>;
    };
    private metricKey;
}
declare const prometheusRegistry: PrometheusRegistry;
export type { MetricLabels };
export { PrometheusRegistry, prometheusRegistry };