code: @Override
      public void out() throws Exception {
          Object val = fa.getFieldValue();
  //        Object val = access;
  
  //        if (ens.shouldFire()) {
  //            DataflowEvent e = new DataflowEvent(ens.getController(), this, val);
  ////            DataflowEvent e = new DataflowEvent(ens.getController(), this, access.toObject());
  //            ens.fireOut(e);
  //            // the value might be altered
  //            val = e.getValue();
  //        }
          // if data==null this unconsumed @Out, its OK but we do not want to set it.
          if (fa.getData() != null) {
              fa.getData().setValue0(val);
          }
          fa.out();
      }
docs: a field is sending a new value (out)
  
  @throws java.lang.Exception