import { Observer } from '@diia-inhouse/diia-metrics';
import { GrpcStreamMetricLabelsMap, NodeEnvLabelsMap } from './interfaces/metrics.js';
export declare function createNodeEnvObserver(getEnv: () => string): Observer<NodeEnvLabelsMap>;
export declare function createGrpcStreamConnectionsObserver(onCollect: () => number, serviceName: string): Observer<GrpcStreamMetricLabelsMap>;
export declare function createGrpcStreamPendingCloseObserver(onCollect: () => number, serviceName: string): Observer<GrpcStreamMetricLabelsMap>;