mailjet-8.x-2.7/modules/mailjet_commerce/mailjet_commerce.services.yml

services:
  mailjet_commerce.init_subscriber:
    class: Drupal\mailjet_commerce\EventSubscriber\InitSubscriber
    tags:
      - name: event_subscriber
  mailjet_commerce.order_complete:
    class: Drupal\mailjet_commerce\EventSubscriber\OrderCompleteSubscriber
    arguments: [ '@entity_type.manager' ]
    tags:
      - { name: event_subscriber }