import { EventEmitter } from 'events';
import { WebRTCStatsOptions } from './types/options';
import { WebRTCStatsEvents } from './types/webRTCStatsEvents';
export interface WebRTCStats {
    /**
     * Adds the `listener` function to the end of the listeners array for the
     * event named `eventName`. No checks are made to see if the `listener` has
     * already been added. Multiple calls passing the same combination of `eventName`and `listener` will result in the `listener` being added, and called, multiple
     * times.
     *
     * @param eventName The name of the event.
     * @param listener The callback function.
     *
     * @returns A reference to the {@link EventEmitter}, so that calls can be chained.
     */
    on<N extends keyof WebRTCStatsEvents>(eventName: N, listener: WebRTCStatsEvents[N]): this;
    /** @hidden */
    emit<N extends keyof WebRTCStatsEvents>(eventName: N, ...args: Parameters<WebRTCStatsEvents[N]>): boolean;
}
/**
 * Representation of the WebRTC Statistics collection object.
 *
 * @example
 * ```ts
 * import { WebRTCStats } from '@dolbyio/webrtc-stats';
 *
 * const collection = new WebRTCStats({
 *     getStatsInterval: 1000,
 *     getStats: () => {
 *         // TODO: return the statistics.
 *     },
 *     includeRawStats: false,
 * });
 *
 * // The stats event is triggered after each interval has elapsed
 * collection.on('stats', (event: OnStats) => {
 *     console.log(event);
 * });
 *
 * // Start the statistics collection
 * collection.start();
 * ```
 */
export declare class WebRTCStats extends EventEmitter implements WebRTCStats {
    #private;
    /**
     * Creates an instance of the {@link WebRTCStats} class.
     *
     * @param options Options for the WebRTC statistics collection.
     */
    constructor(options: WebRTCStatsOptions);
    /**
     * Starts the WebRTC statistics collection.
     */
    start: () => void;
    /**
     * Stops the WebRTC statistics collection.
     */
    stop: () => void;
}