code: public static WorkerChannelFetcher fetcher(final String pathWorkspaceSid, 
                                                 final String pathWorkerSid, 
                                                 final String pathSid) {
          return new WorkerChannelFetcher(pathWorkspaceSid, pathWorkerSid, pathSid);
      }
docs: Create a WorkerChannelFetcher to execute fetch.
  
  @param pathWorkspaceSid The workspace_sid
  @param pathWorkerSid The worker_sid
  @param pathSid The sid
  @return WorkerChannelFetcher capable of executing the fetch