Symfony UX - Update PostRender #49699

#[AsLiveComponent('topic_list')]
class TopicListComponent
{
    use DefaultActionTrait;
    private array $topics = [];
    private bool $isLoaded = false;

    public function __construct(private readonly MyApiClient $client) {}

    #[LiveAction]
    public function loadData(): void
    {
        $this->topics = $this->client->getTopicList(useCache: false);
        $this->isLoaded = true;
    }

    // getters...

<div {{ attributes }}>
    <button data-action="live#action" data-action-name="loadData">Load</button>
    {% if this.isLoaded %}
        <ul>
            {% for topic in this.topics %}
                <li>
                    {{ topic.label }}
                </li>
            {% endfor %}
        </ul>
    {% else %}
        <p>Loading</p>
    {% endif %}
</div>