code: public static SampleFetcher fetcher(final String pathAssistantSid, 
                                          final String pathTaskSid, 
                                          final String pathSid) {
          return new SampleFetcher(pathAssistantSid, pathTaskSid, pathSid);
      }
docs: Create a SampleFetcher to execute fetch.
  
  @param pathAssistantSid The unique ID of the Assistant.
  @param pathTaskSid The unique ID of the Task associated with this Sample.
  @param pathSid A 34 character string that uniquely identifies this resource.
  @return SampleFetcher capable of executing the fetch