code: public Observable<List<ClosedListEntityExtractor>> listClosedListsAsync(UUID appId, String versionId, ListClosedListsOptionalParameter listClosedListsOptionalParameter) {
          return listClosedListsWithServiceResponseAsync(appId, versionId, listClosedListsOptionalParameter).map(new Func1<ServiceResponse<List<ClosedListEntityExtractor>>, List<ClosedListEntityExtractor>>() {
              @Override
              public List<ClosedListEntityExtractor> call(ServiceResponse<List<ClosedListEntityExtractor>> response) {
                  return response.body();
              }
          });
      }
docs: Gets information about the closedlist models.
  
  @param appId The application ID.
  @param versionId The version ID.
  @param listClosedListsOptionalParameter the object representing the optional parameters to be set before calling this API
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the List&lt;ClosedListEntityExtractor&gt; object