gin_login-8.x-1.0-rc6/gin_login.routing.yml

gin_login.configuration_form:
  path: 'admin/config/system/configuration/gin-login'
  defaults:
    _form: '\Drupal\gin_login\Form\GinLoginConfigurationForm'
    _title: 'Gin Login Configuration Form'
  requirements:
    _permission: 'administer site configuration'
  options:
    _admin_route: TRUE