cloud-8.x-2.0-beta1/modules/cloud_service_providers/aws_cloud/drush.services.yml

services:
  aws_cloud.commands:
    class: \Drupal\aws_cloud\Commands\aws\InstanceCommands
    arguments: ['@aws_cloud.ec2', '@plugin.manager.cloud_config_plugin']
    tags:
      - { name: drush.command }