@AfterTemplate
    public KeysetHandle afterTemplate() throws GeneralSecurityException {
      return KeysetHandle.generateNew(PredefinedAeadParameters.AES128_EAX);
    }
If users first create a binary keyset reader from a byte[], then call readNoSecret, we can
simply call the new function directly without any parsing.
java_src/tools/refaster/java/com/google/tink1_templates/AllChanges.java