@Override
  public RTCStatList get(Object key) {
    RTCStatList res = super.get(key);
    res.addNewData("Region Id", this.regionId);
    res.addNewData("Network Profile", this.networkProfile);
    res.addNewData("Itinerary", this.itinerary + "");
    return res;
  }
Get the stat list using index
@param index index of the stat list
@return
KITE-Framework/src/main/java/org/webrtc/kite/stats/rtc/RTCStatMap.java