eca-1.0.x-dev/modules/content/eca_content.services.yml

services:
  eca_content.hook_handler:
    class: Drupal\eca_content\HookHandler
    arguments: ['@eca.trigger_event', '@eca.service.content_entity_types']

  eca_content.service.entity_loader:
    class: Drupal\eca_content\Service\EntityLoader
    arguments: ['@entity_type.manager', '@eca.token_services', '@string_translation', '@eca.service.yaml_parser', '@logger.channel.eca', '@language_manager']