docs: public <K> JavaPairRDD<K, Double> scoreExamplesMultiDataSet(JavaPairRDD<K, MultiDataSet> data,
                      boolean includeRegularizationTerms, int batchSize) {
          return data.mapPartitionsToPair(new ScoreExamplesWithKeyFunction<K>(sc.broadcast(network.params()),
                          sc.broadcast(conf.toJson()), includeRegularizationTerms, batchSize));
      }