export { N as NoOpMetrics } from "../packem_shared/no-op-metrics.d-CqCPyNVL.js";
import { Meter } from '@opentelemetry/api';
import { M as Metrics } from "../packem_shared/types.d-DFh9698o.js";
import 'node:crypto';
import 'node:http';
import 'node:stream';
import 'lru-cache';
/**
 * OpenTelemetry-based metrics implementation.
 */
declare class OpenTelemetryMetrics implements Metrics {
  private readonly meter;
  private readonly counters;
  private readonly histograms;
  private readonly gauges;
  /**
   * Creates a new OpenTelemetryMetrics instance.
   * @param meter OpenTelemetry Meter instance. If not provided, uses the default meter.
   * @throws {Error} If \@opentelemetry/api is not installed
   */
  constructor(meter?: Meter);
  /**
   * Increment a counter metric.
   */
  increment(name: string, value?: number, attributes?: Record<string, string | number>): void;
  /**
   * Record a duration/timing metric in milliseconds.
   */
  timing(name: string, duration: number, attributes?: Record<string, string | number>): void;
  /**
   * Set a gauge metric value.
   */
  gauge(name: string, value: number, attributes?: Record<string, string | number>): void;
}
export { OpenTelemetryMetrics };