docs: public Observable<DataLakeAnalyticsAccountInner> updateAsync(String resourceGroupName, String accountName, UpdateDataLakeAnalyticsAccountParameters parameters) {
          return updateWithServiceResponseAsync(resourceGroupName, accountName, parameters).map(new Func1<ServiceResponse<DataLakeAnalyticsAccountInner>, DataLakeAnalyticsAccountInner>() {
              @Override
              public DataLakeAnalyticsAccountInner call(ServiceResponse<DataLakeAnalyticsAccountInner> response) {
                  return response.body();
              }
          });
      }