//#region src/metrics.d.ts
declare namespace Metrics {
  type DomainSources = {
    workers(): Promise<number>;
    placements(): Promise<number>;
    resolutions(): Record<string, number>;
    /** Distinct hostname / env counts among live workers. */
    worlds(): Promise<{
      hostnames: number;
      envs: number;
    }>;
  };
  type RequestTrack = {
    route: string;
    done(statusCode: number): void;
  };
  type Instance = {
    forwardsTotal: {
      inc(labels: {
        kind: string;
      }): void;
    };
    forwardFailuresTotal: {
      inc(labels: {
        outcome: string;
      }): void;
    };
    takeoversTotal: {
      inc(labels: {
        strategy: string;
        outcome: string;
      }): void;
    };
    degradedHeartbeatsTotal: {
      inc(labels: {
        reason: string;
      }): void;
    };
    registerRejectionsTotal: {
      inc(labels: {
        account: string;
        pool: string;
        reason: string;
      }): void;
    };
    dataPlaneConnections: {
      inc(): void;
      dec(): void;
    };
    internalError(source: string): void;
    guarded(source: string, fn: () => unknown): () => void;
    trackHttpRequest(method: string): RequestTrack;
    setDomainSources(sources: DomainSources): void;
    close(): void;
  };
}
declare const guardedWith: (onError: (source: string) => void) => Metrics.Instance["guarded"];
declare const noopMetrics: Metrics.Instance;
declare const normalizeRegistryRoute: (pathname: string) => string;
//#endregion
export { Metrics, guardedWith, noopMetrics, normalizeRegistryRoute };
//# sourceMappingURL=metrics.d.ts.map