Modifying ai.djl.examples.training.TrainSeq2Seq to do predictions

[DonaldAlan]

I want to modify ai.djl.examples.training.TrainSeqToSeq so I can give it an English sentence and it will spit out the predicted French translation. Apparently -- correct me if I'm wrong -- I need to create a Predictor, doing something like:

            EasyTrain.fit(trainer, arguments.getEpoch(), trainingSet, null);  // This line is in the original TrainSeq2Seq.java
            Predictor<String,String> predictor = model.newPredictor(getTranslator(model));  // This line and the next 3 are ones I added.
            String input = "I'm early."; // Je suis en avacnce.
            String prediction = predictor.predict(input);
            System.out.println("Prediction for " + input + " is " + prediction); 

My question is: how do define getTranslator? Or is this entire approach wrong?