code: public static PublishedTrackFetcher fetcher(final String pathRoomSid, 
                                                  final String pathParticipantSid, 
                                                  final String pathSid) {
          return new PublishedTrackFetcher(pathRoomSid, pathParticipantSid, pathSid);
      }
docs: Create a PublishedTrackFetcher to execute fetch.
  
  @param pathRoomSid Unique Room identifier where this Track is published.
  @param pathParticipantSid Unique Participant identifier that publishes this
  Track.
  @param pathSid A 34 character string that uniquely identifies this resource.
  @return PublishedTrackFetcher capable of executing the fetch