panopoly_media-8.x-2.x-dev/panopoly_media.services.yml

services:
  panopoly_media.img_data:
    class: Drupal\panopoly_media\ImgData
  panopoly_media.route_subscriber:
    class: Drupal\panopoly_media\Routing\RouteSubscriber
    tags:
      - { name: event_subscriber }