bodyFromMessageWithNoOption example

if (!$options && $notification = $message->getNotification()) {
            $options = LinkedInOptions::fromNotification($notification);
            $options->author(new AuthorShare($this->accountId));
        }

        $endpoint = sprintf('https://%s/v2/ugcPosts', $this->getEndpoint());

        $response = $this->client->request('POST', $endpoint, [
            'auth_bearer' => $this->authToken,
            'headers' => ['X-Restli-Protocol-Version' => '2.0.0'],
            'json' => array_filter($options?->toArray() ?? $this->bodyFromMessageWithNoOption($message)),
        ]);

        try {
            $statusCode = $response->getStatusCode();
        } catch (TransportExceptionInterface $e) {
            throw new TransportException('Could not reach the remote LinkedIn server.', $response, 0, $e);
        }

        if (201 !== $statusCode) {
            throw new TransportException(sprintf('Unable to post the Linkedin message: "%s".', $response->getContent(false)), $response);
        }