visualn-8.x-1.x-dev/modules/visualn_embed/visualn_embed.services.yml

services:
  visualn_embed.iframe_content_provider:
    class: Drupal\visualn_embed\IFrameContent\EmbeddedDrawingIFrameContentProvider
    tags:
      - { name: visualn_iframe_content_provider }
  access_check.visualn_embed_button_editor:
    class: Drupal\visualn_embed\Access\VisualNEmbedButtonEditorAccessCheck
    tags:
      - { name: access_check, applies_to: _visualn_embed_button_editor_access }