og_sm-8.x-1.0/og_sm_config/tests/modules/og_sm_config_test/og_sm_config_test.routing.yml

og_sm.site_edit:
  path: 'group/node/{node}/admin/basic-settings'
  defaults:
    _form: 'Drupal\og_sm_config_test\Form\BasicForm'
    _title: 'Basic site settings'
  requirements:
    _og_user_access_group: 'administer site'
  options:
    _og_entity_type_id: 'group'
    _admin_route: TRUE
    parameters:
      node:
        type: og_sm:site