import BaseSignaling from '../../abstract/BaseSignaling';
import EventEmitter from '../EventEmitter';
import DirectTransport from './DirectTransport';
import ServerTransport from './ServerTransport';
export default class PerfStatReporter extends EventEmitter {
    private _previousPerfStatReportTimestamp;
    private _previousNetworkStatReportTimestamp;
    private _previousCallStatReportTimestamp;
    private _previousCallStatReport;
    private _screenShareStats;
    private _signaling;
    private readonly _directTopology;
    constructor(transport: ServerTransport | DirectTransport, signaling: BaseSignaling, directTopology?: boolean);
    destroy(): void;
    static getEstimatedPerformanceIndex(): number;
    private _handleStats;
    private reportPerfStats;
    private reportNetworkStats;
    private _reportCallStats;
    private _handleScreenSharingStat;
    private _handleTransportStateChanged;
}