code: public static Pair<ComputationGraph, Normalizer> restoreComputationGraphAndNormalizer(@NonNull File file, boolean loadUpdater)
              throws IOException {
          ComputationGraph net = restoreComputationGraph(file, loadUpdater);
          Normalizer norm = restoreNormalizerFromFile(file);
          return new Pair<>(net, norm);
      }
docs: Restore a ComputationGraph and Normalizer (if present - null if not) from a File
  
  @param file        File to read the model and normalizer from
  @param loadUpdater Whether to load the updater from the model or not
  @return Model and normalizer, if present
  @throws IOException If an error occurs when reading from the File