code: @Override
      @SuppressWarnings("unchecked")
      public MapReduceBatchCursor<T> execute(final ReadBinding binding) {
          return executeCommand(binding, namespace.getDatabaseName(), getCommandCreator(binding.getSessionContext()),
                  CommandResultDocumentCodec.create(decoder, "results"), transformer(), false);
      }
docs: Executing this will return a cursor with your results and the statistics in.
  
  @param binding the binding
  @return a MapReduceCursor that can be iterated over to find all the results of the Map Reduce operation.