public static final KeyTemplate rawAes256EaxTemplate() {
    return exceptionIsBug(
        () ->
            KeyTemplate.createFrom(
                AesEaxParameters.builder()
                    .setIvSizeBytes(16)
                    .setKeySizeBytes(32)
                    .setTagSizeBytes(16)
                    .setVariant(AesEaxParameters.Variant.NO_PREFIX)
                    .build()));
  }
@return a {@link KeyTemplate} that generates new instances of AES-EAX with the following
    parameters:
    <ul>
      <li>Key size: 32 bytes
      <li>IV size: 16 bytes
      <li>Prefix type: {@link KeyTemplate.OutputPrefixType#RAW} (no prefix)
    </ul>
java_src/src/main/java/com/google/crypto/tink/aead/AesEaxKeyManager.java