<div class="testfunction">
  {{ attach_photoswipe() }}
  <div class="photoswipe-gallery">
    <a href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-2500.jpg" class="photoswipe">
      <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-2500.jpg" alt="Test123" />
    </a>
  </div>
</div>
