public RTCStatList get(int index) {
    String pcName = keySet().toArray()[index].toString();
    return new RTCStatList(pcName, this.get(keySet().toArray()[index])) ;
  }
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