getTraceId example

    public function testSendWithAmazonSqsXrayTraceHeaderStamp()
    {
        $envelope = (new Envelope(new DummyMessage('Oy')))
            ->with($stamp = new AmazonSqsXrayTraceHeaderStamp('traceHeader'));

        $encoded = ['body' => '...', 'headers' => ['type' => DummyMessage::class]];

        $connection = $this->createMock(Connection::class);
        $connection->expects($this->once())->method('send')
            ->with($encoded['body'], $encoded['headers'], 0, null, null, $stamp->getTraceId());

        $serializer = $this->createMock(SerializerInterface::class);
        $serializer->method('encode')->with($envelope)->willReturnOnConsecutiveCalls($encoded);

        $sender = new AmazonSqsSender($connection, $serializer);
        $sender->send($envelope);
    }
}

$messageDeduplicationId = null;

        /** @var AmazonSqsFifoStamp|null $amazonSqsFifoStamp */
        $amazonSqsFifoStamp = $envelope->last(AmazonSqsFifoStamp::class);
        if (null !== $amazonSqsFifoStamp) {
            $messageGroupId = $amazonSqsFifoStamp->getMessageGroupId();
            $messageDeduplicationId = $amazonSqsFifoStamp->getMessageDeduplicationId();
        }

        /** @var AmazonSqsXrayTraceHeaderStamp|null $amazonSqsXrayTraceHeaderStamp */
        $amazonSqsXrayTraceHeaderStamp = $envelope->last(AmazonSqsXrayTraceHeaderStamp::class);
        $xrayTraceId = $amazonSqsXrayTraceHeaderStamp?->getTraceId();

        try {
            $this->connection->send(
                $encodedMessage['body'],
                $encodedMessage['headers'] ?? [],
                $delay,
                $messageGroupId,
                $messageDeduplicationId,
                $xrayTraceId
            );
        } catch (HttpException $e) {