geolocation-8.x-3.x-dev/modules/geolocation_geocodio/geolocation_geocodio.routing.yml

geolocation_geocodio.settings:
  path: '/admin/config/services/geolocation/geocodio'
  defaults:
    _form:  '\Drupal\geolocation_geocodio\Form\GeocodioSettings'
    _title: 'Geocodio settings'
  requirements:
    _permission: 'configure geolocation'