DemoUmamiContentHooks.php

<?php

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

use Drupal\Core\Hook\Attribute\Hook;
use Drupal\demo_umami_content\InstallHelper;

/**
 * Hook implementations for demo_umami_content.
 */
class DemoUmamiContentHooks {
  
  /**
   * Implements hook_module_preinstall().
   */
  public function modulePreinstall($module, bool $is_syncing) : void {
    if ($module === 'demo_umami_content' && !$is_syncing) {
      // Run before importing config so blocks are created with the correct
      // dependencies.
      \Drupal::classResolver(InstallHelper::class)->importContent();
    }
  }

}