https://api.drupal.org/api/drupal/core%21modules%21block%21src%21Controller%21CategoryAutocompleteController.php/function/CategoryAutocompleteController%3A%3Aautocomplete/8.9.x
function CategoryAutocompleteController::autocomplete | Drupal API
functionautocompletedrupalapi
https://api.drupal.org/api/drupal/core%21modules%21block%21src%21Controller%21CategoryAutocompleteController.php/9
CategoryAutocompleteController.php | Drupal API
phpdrupalapi
https://api.drupal.org/api/drupal/core%21modules%21block%21src%21Controller%21CategoryAutocompleteController.php/class/CategoryAutocompleteController/9
class CategoryAutocompleteController | Drupal API
classdrupalapi