migrate_plus-8.x-5.x-dev/migrate_plus.services.yml

services:
  plugin.manager.migrate_plus.authentication:
    class: Drupal\migrate_plus\AuthenticationPluginManager
    parent: default_plugin_manager
  plugin.manager.migrate_plus.data_fetcher:
    class: Drupal\migrate_plus\DataFetcherPluginManager
    parent: default_plugin_manager
  plugin.manager.migrate_plus.data_parser:
    class: Drupal\migrate_plus\DataParserPluginManager
    parent: default_plugin_manager