backup_migrate-5.0.0-rc2/backup_migrate.services.yml

services:
  plugin.manager.backup_migrate_source:
    class: Drupal\backup_migrate\Drupal\EntityPlugins\SourcePluginManager
    parent: default_plugin_manager
  plugin.manager.backup_migrate_destination:
    class: Drupal\backup_migrate\Drupal\EntityPlugins\DestinationPluginManager
    parent: default_plugin_manager
  backup_migrate.mailer:
    class: Drupal\backup_migrate\Core\Service\Mailer