templating-8.x-2.0/templating.routing.yml

templating.settings:
   path: '/admin/config/template/settings'
   defaults:
     _form: '\Drupal\templating\Form\ConfigTemplateSetting'
     _title: 'Template Settings'
   requirements:
     _permission: 'access administration pages'
   options:
     _admin_route: TRUE

templating.create:
  path: '/admin/template/create'
  defaults:
    _form: '\Drupal\templating\Form\ConfigTemplateCreate'
    _title: 'Create  Template'
  requirements:
    _permission: 'allowed create template'