saml_sp-8.x-3.x-dev/modules/saml_sp_drupal_login/saml_sp_drupal_login.links.menu.yml

saml_sp_drupal_login.config:
  title: 'Login'
  route_name: saml_sp_drupal_login.config
  description: 'Configure IdPs for login'
  parent: saml_sp.admin