RTCTransportStats

bytesReceived?: number;

bytesSent?: number;

dtlsCipher?: string;

dtlsState: RTCDtlsTransportState;

localCertificateId?: string;

remoteCertificateId?: string;

rtcpTransportStatsId?: string;

selectedCandidatePairId?: string;

srtpCipher?: string;

tlsVersion?: string;