Config importer factory

ConfigImporterFactory.php

<?php

class ConfigImporterFactory {
  
  /**
   * The event dispatcher used to notify subscribers.
   *
   * @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
   */
  protected $eventDispatcher;

  /**
   * The configuration manager.
   *
   * @var \Drupal\Core\Config\ConfigManagerInterface
   */
  protected $configManager;
  
  // ...
  
  public function __construct(EventDispatcherInterface $event_dispatcher) {
    $this->eventDispatcher = $event_dispatcher;
    // ...
  }
 
  public function create(StorageComparerInterface $storage_comparer) {
    
    return new ConfigImporter($this->eventDispatcher, $storage_comparer);
    
  }
  
}

core.services.yml

  config_importer.factory:
    class: Drupal\Core\Config\ConfigImporterFactory
    arguments: ['@...']

example.php

<?php

class Foo {

  public function __construct(ConfigImporterFactory $config_importer_factory) {
    
  }
  
  public function bar() {
    
    // Get a storage comparer somehow...
    $storage_comparer = // ...
      
    $config_importer = $this->config_importer_factory->create($storage_comparer)
    
  }


}