export declare class AudioStats {
    codec: string;
    roundTripTime: number;
    packetsSent: number;
    bytesSent: number;
    retransmittedPacketsSent: number;
    retransmittedBytesSent: number;
    packetsReceived: number;
    bytesReceived: number;
    packetsLost: number;
    jitter: number;
    toJSON(): {
        codec: string;
        roundTripTime: number;
        packetsSent: number;
        bytesSent: number;
        retransmittedPacketsSent: number;
        retransmittedBytesSent: number;
        packetsReceived: number;
        bytesReceived: number;
        packetsLost: number;
        jitter: number;
    };
}