import { Meter, Counter, ObservableUpDownCounter, Histogram } from '@opentelemetry/api';
import InstrumentedSemaphorePoolFactory, { MetricOptions, SemaphoreLabels, SemaphorePoolLabels, SemaphoreSettledLabels } from './instrumented.js';
export default class OTelSemaphorePoolFactory extends InstrumentedSemaphorePoolFactory {
    #private;
    constructor(meter: Meter, opts?: MetricOptions);
    get meter(): Meter;
    get metrics(): {
        requested: Counter<SemaphoreLabels> & {
            inc(labels: SemaphoreLabels): void;
            init(labels: SemaphoreLabels): void;
        };
        settled: Counter<SemaphoreSettledLabels> & {
            inc(labels: SemaphoreSettledLabels): void;
            init(labels: SemaphoreSettledLabels): void;
        };
        released: Counter<SemaphoreLabels> & {
            inc(labels: SemaphoreLabels): void;
            init(labels: SemaphoreLabels): void;
        };
        reserved: ObservableUpDownCounter<SemaphoreLabels> & {
            set(labels: SemaphoreLabels, value: number): void;
        };
        queued: ObservableUpDownCounter<SemaphoreLabels> & {
            set(labels: SemaphoreLabels, value: number): void;
        };
        concurrency: ObservableUpDownCounter<SemaphorePoolLabels> & {
            set(labels: SemaphorePoolLabels, value: number): void;
        };
        capacity: ObservableUpDownCounter<SemaphorePoolLabels> & {
            set(labels: SemaphorePoolLabels, value: number): void;
        };
        waittime: Histogram<SemaphoreSettledLabels> & {
            observe(labels: SemaphoreSettledLabels, value: number): void;
        };
        heldtime: Histogram<SemaphoreLabels> & {
            observe(labels: SemaphoreLabels, value: number): void;
        };
    };
}