memcache-8.x-2.2/memcache_admin/memcache_admin.services.yml

services:
  memcache_admin.display_statistics:
    class: Drupal\memcache_admin\EventSubscriber\MemcacheAdminSubscriber
    arguments:
      - '@memcache.factory'
      - '@config.factory'
      - '@current_user'
      - '@renderer'
    tags:
      - { name: event_subscriber }
  memcache_stats.memcached:
    class: Drupal\memcache_admin\EventSubscriber\MemcacheServerStatsSubscriber
    tags:
      - { name: event_subscriber }
  memcache_stats.mcrouter:
    class: Drupal\memcache_admin\EventSubscriber\McrouterStatsSubscriber
    tags:
      - { name: event_subscriber }