geolocation-8.x-3.x-dev/modules/geolocation_google_maps/geolocation_google_maps.links.menu.yml

# Define default links for this module.
geolocation_google_maps.settings:
  route_name: geolocation_google_maps.settings
  title: 'Google Maps API settings'
  parent: system.admin_config_services
  description: 'Configure Google Maps API key, default geocoder and optional parameters like libraries.'