docs: public ArrayList<PayloadType.Audio> getAudioPayloadTypesList() {
          ArrayList<PayloadType.Audio> result = new ArrayList<>();
          Iterator<JinglePayloadType> jinglePtsIter = getJinglePayloadTypes();
  
          while (jinglePtsIter.hasNext()) {
              JinglePayloadType jpt = jinglePtsIter.next();
              if (jpt instanceof JinglePayloadType.Audio) {
                  JinglePayloadType.Audio jpta = (JinglePayloadType.Audio) jpt;
                  result.add((PayloadType.Audio) jpta.getPayloadType());
              }
          }
  
          return result;
      }