docs: public JingleDescription getJingleDescription() {
          JingleDescription result = null;
          PayloadType payloadType = getBestCommonAudioPt();
          if (payloadType != null) {
              result = new JingleDescription.Audio(payloadType);
          } else {
              // If we haven't settled on a best payload type yet then just use the first one in our local list.
              result = new JingleDescription.Audio();
              result.addAudioPayloadTypes(localAudioPts);
          }
          return result;
      }