cms_content_sync-3.0.x-dev/modules/cms_content_sync_private_environment/drush.services.yml

services:
  cms_content_sync_private_environment_drush.commands:
    class: \Drupal\cms_content_sync_private_environment\Commands\CMSContentSyncPrivateEnvironmentCommands
    arguments: ['@cms_content_sync.cli']
    tags:
      - { name: drush.command }