import ClientMetricReport from '../clientmetricreport/ClientMetricReport';
import MeetingSessionLifecycleEvent from '../meetingsession/MeetingSessionLifecycleEvent';
import MeetingSessionLifecycleEventCondition from '../meetingsession/MeetingSessionLifecycleEventCondition';
import MeetingSessionStatus from '../meetingsession/MeetingSessionStatus';
import SignalingClient from '../signalingclient/SignalingClient';
import VideoStreamIndex from '../videostreamindex/VideoStreamIndex';
import AudioLogEvent from './AudioLogEvent';
import VideoLogEvent from './VideoLogEvent';
/**
 * [[StatsCollector]] gathers statistics and sends metrics.
 */
export default interface StatsCollector {
    /**
     * Starts collecting statistics.
     */
    start(signalingClient: SignalingClient, videoStreamIndex: VideoStreamIndex, clientMetricReport?: ClientMetricReport): boolean;
    stop(): void;
    /**
     * Logs the audio event.
     */
    logAudioEvent(eventName: AudioLogEvent, attributes?: {
        [id: string]: string;
    }): void;
    /**
     * Logs the video event.
     */
    logVideoEvent(eventName: VideoLogEvent, attributes?: {
        [id: string]: string;
    }): void;
    /**
     * Logs the latency.
     */
    logLatency(eventName: string, timeMs: number, attributes?: {
        [id: string]: string;
    }): void;
    /**
     * Logs the state timeout.
     */
    logStateTimeout(stateName: string, attributes?: {
        [id: string]: string;
    }): void;
    /**
     * Logs the session status.
     */
    logMeetingSessionStatus(status: MeetingSessionStatus): void;
    /**
     * Logs the lifecycle event
     */
    logLifecycleEvent(lifecycleEvent: MeetingSessionLifecycleEvent, condition: MeetingSessionLifecycleEventCondition): void;
}