TestInvalidHookCollectionHooks.php

<?php

declare (strict_types=1);
namespace Drupal\oop_hook_theme_with_module\Hook;

use Drupal\Core\Hook\Attribute\Hook;

/**
 * Contains hooks that will throw exceptions during collection.
 */
class TestInvalidHookCollectionHooks {
  public function testHook(array &$calls) : void {
    $calls[] = __METHOD__;
  }

}