d10_custom_form_autocomplete.routing.yml

d10_custom_form_autocomplete.custom_autocomplete_engine:
  path: '/custom-autocomplete-engine'
  defaults:
    _controller: '\Drupal\d10_custom_form_autocomplete\Controller\FormAutoComplete::custom_engine'
  requirements:
      _role: 'authenticated'
  options:
       no_cache: TRUE

d10_custom_form_autocomplete.my_form_display:
  path: '/custom-autocomplete-form-display'
  defaults:
    _controller: '\Drupal\d10_custom_form_autocomplete\Controller\CustomPageDisplay::autocomplete_display'
  requirements:
      _role: 'authenticated'
  options:
       no_cache: TRUE