improvements-2.x-dev/modules/improvements_form/tests/modules/improvements_form_test/improvements_form_test.routing.yml

improvements_form_test.test_form:
  path: /improvements-test/test-form
  defaults:
    _form: \Drupal\improvements_form_test\Form\ImprovementsTestForm
    _title: Test form
  requirements:
    _access: 'TRUE'