code: @SuppressWarnings("unchecked")
      public <T extends IEvaluation> T[] doEvaluationMDS(JavaRDD<MultiDataSet> data, int evalBatchSize, T... emptyEvaluations) {
          return doEvaluationMDS(data, getDefaultEvaluationWorkers(), evalBatchSize, emptyEvaluations);
      }
docs: Perform distributed evaluation on a <i>single output</i> ComputationGraph form MultiDataSet objects using Spark.
  Can be used to perform multiple evaluations on this single output (for example, {@link Evaluation} and
  {@link ROC}) at the same time.
  
  @param data             Data to evaluatie
  @param evalBatchSize    Minibatch size for evaluation
  @param emptyEvaluations Evaluations to perform
  @return                 Evaluations