import type { PrometheusCalculatedSummaryOptions } from './index.ts';
import type { SummaryGroup, StopTimer } from '@libp2p/interface';
export declare class PrometheusSummaryGroup implements SummaryGroup {
    private readonly summary;
    private readonly label;
    constructor(name: string, opts: PrometheusCalculatedSummaryOptions<Record<string, number>>);
    observe(values: Record<string, number>): void;
    reset(): void;
    timer(key: string): StopTimer;
}
//# sourceMappingURL=summary-group.d.ts.map