@Override
  public void engineInitSenderForTesting(PublicKey recipientKey, byte[] info, PrivateKey senderKey,
          byte[] psk, byte[] pskId, byte[] sKe) throws InvalidKeyException {
      invokeWithPossibleInvalidKey("engineInitSenderForTesting",
              recipientKey, info, senderKey, psk, pskId, sKe);
  }
Duck typed implementation of {@link HpkeSpi}.
<p>
Will wrap any Object which implements all of the methods in HpkeSpi and delegate to them
by reflection.
common/src/main/java/org/conscrypt/DuckTypedHpkeSpi.java