blazy-8.x-2.x-dev/modules/blazy_layout/blazy_layout.services.yml

services:
  blazy_layout:
    class: Drupal\blazy_layout\BlazyLayoutManager
    parent: blazy.manager

  blazy_layout.admin:
    class: Drupal\blazy_layout\Form\BlazyLayoutAdmin
    parent: blazy.admin.base
    calls:
      - [setManager, ['@blazy_layout']]