code: @Override
      protected void exportSuccessfulResult(String prefix, MultiResult result) {
          super.exportSuccessfulResult(prefix, result);
          for (int i = 0; i < tasks.size(); i++) {
              AbstractMatcherElement<Result> t = tasks.get(i);
              t.exportSuccessfulResult(t.getResultPrefix(), result.getResults().get(i));
              t.exportSuccessfulResult(prefix + "." + i, result.getResults().get(i));
          }
      }
docs: {@inheritDoc}
  <p/>
  In addition, this method exports the children results. They are exported using their
  {@code resultPrefix}, and
  via shortcut {@code prefix + "." + &lt;number&gt;}, where the number here is the result
  index.
  
  @param prefix the property prefix
  @param result the result