import { HistogramValue, Labels, Metric, MetricValue } from './types';
export declare function formatHistogramOrSummary(name: string, metric: Metric<HistogramValue>, bucketLabel?: string): string;
export declare function findExistingMetric<T extends MetricValue>(labels?: Labels, values?: Metric<T>[]): Metric<T> | undefined;
export declare function formatCounterOrGauge(name: string, metric: Metric<MetricValue>): string;