@Override
  public JsonObjectBuilder getJsonObjectBuilder() {
    return super.getJsonObjectBuilder()
        .add("packetsReceived", this.packetsReceived)
        .add("packetsLost", this.packetsLost)
        .add("packetsDiscarded", this.packetsDiscarded)
        .add("jitter", this.jitter)
        .add("bytesReceived", this.bytesReceived);
  }
Represent RTCRtpStreamStats, outbound and inbound, sent and received.
KITE-Framework/src/main/java/org/webrtc/kite/stats/rtc/rtpstream/RTCReceivedRtpStreamStats.java