docs: public void evaluateMultiple(DataSetIterator iterator, Map<String,List<IEvaluation>> variableEvals){
          Map<String,Integer> map = new HashMap<>();
          for(String s : variableEvals.keySet()){
              map.put(s, 0);  //Only 1 possible output here with DataSetIterator
          }
          evaluate(new MultiDataSetIteratorAdapter(iterator), variableEvals, map);
      }