@BeforeTemplate
    public KeysetHandle beforeTemplate() throws GeneralSecurityException {
      return KeysetHandle.generateNew(
          SignatureKeyTemplates.RSA_SSA_PKCS1_3072_SHA256_F4_WITHOUT_PREFIX);
    }
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