o365-2.0.3/modules/o365_sso_user/o365_sso_user.services.yml

services:
  o365_sso_user.login_event:
    class: Drupal\o365_sso_user\EventSubscriber\UserLoginEventSubscriber
    arguments: ['@o365_sso_user.sync']
    tags:
      - { name: event_subscriber }

  o365_sso_user.sync:
    class: Drupal\o365_sso_user\SsoUserSync
    arguments:
      [
        '@config.factory',
        '@o365.graph',
        '@entity_type.manager',
        '@o365_profile.get_data',
        '@file.repository',
        '@file_system'
      ]