/**
 * Media quality statistics for audio or video streams.
 *
 * Contains network quality metrics including RTT, jitter, and packet loss.
 */
export declare class MediaQualityStats {
    /**
     * Median RTT in milliseconds calculated via RTP/RTCP, or undefined if unavailable.
     */
    readonly rttMedianMillis: number | undefined;
    /**
     * Median jitter for sent packets as reported by remote peer in milliseconds,
     * or undefined if unavailable.
     */
    readonly jitterMedianSendMillis: number | undefined;
    /**
     * Median jitter for received packets in milliseconds, or undefined if unavailable.
     */
    readonly jitterMedianRecvMillis: number | undefined;
    /**
     * Packet loss fraction for sent packets as reported by remote peer,
     * or undefined if unavailable.
     */
    readonly packetLossFractionSend: number | undefined;
    /**
     * Packet loss fraction for received packets, or undefined if unavailable.
     */
    readonly packetLossFractionRecv: number | undefined;
}
/**
 * Overall call quality statistics.
 *
 * Contains connection-level metrics and separate audio/video quality stats.
 */
export declare class QualityStats {
    /**
     * Median connection RTT in milliseconds calculated via STUN/ICE,
     * or undefined if unavailable.
     */
    readonly rttMedianConnectionMillis: number | undefined;
    /** Audio quality statistics. */
    readonly audioStats: MediaQualityStats;
    /** Video quality statistics. */
    readonly videoStats: MediaQualityStats;
}
/**
 * Summary of call telemetry data providing a synopsis of call quality.
 *
 * Statistics are captured when the call ends and are available for reporting.
 */
export declare class CallSummary {
    /**
     * SHA-256 Hash of a CallId
     */
    readonly callIdHash: Uint8Array<ArrayBuffer> | undefined;
    /**
     * Call start timestamp in milliseconds since January 1, 1970 00:00:00 UTC.
     */
    readonly startTime: number;
    /**
     * Call end timestamp in milliseconds since January 1, 1970 00:00:00 UTC.
     */
    readonly endTime: number;
    /**
     * High-level call quality statistics with cumulative metrics for the entire
     * call session, including connection-level stats and separate audio/video
     * quality stats.
     */
    readonly qualityStats: QualityStats;
    /**
     * Raw call telemetry data containing periodic internal/opaque values for the
     * last few seconds of the call, or undefined if unavailable.
     */
    readonly rawStats: Uint8Array<ArrayBuffer> | undefined;
    /**
     * Textual description of raw telemetry data, or undefined if unavailable.
     */
    readonly rawStatsText: string | undefined;
    /**
     * Textual representation of the call end reason.
     */
    readonly callEndReasonText: string;
    /**
     * Whether the call is eligible for user survey (i.e., the call actually connected).
     */
    readonly isSurveyCandidate: boolean;
}