hierarchy_manager.services.yml

services:
  plugin.manager.hm.hmsetup:
    class: Drupal\hierarchy_manager\Plugin\HmSetupPluginManager
    parent: default_plugin_manager
  plugin.manager.hm.display_plugin:
    class: Drupal\hierarchy_manager\Plugin\HmDisplayPluginManager
    parent: default_plugin_manager
  hm.route_subscriber:
    class: Drupal\hierarchy_manager\Routing\HmRouteSubscriber
    tags:
      - { name: event_subscriber }