admin_toolbar-8.x-2.x-dev/admin_toolbar_tools/admin_toolbar_tools.services.yml

services:
  admin_toolbar_tools.helper:
    class: Drupal\admin_toolbar_tools\AdminToolbarToolsHelper
    arguments:
      - '@entity_type.manager'
      - '@plugin.manager.menu.local_task'
      - '@current_route_match'
      - '@config.factory'