Issue #3272061: AU Extension: Create new ExtensionUpdater class and service

automatic_updates_extensions/src/ExtensionUpdater.php

@@ -5,7 +5,10 @@ namespace Drupal\automatic_updates_extensions;
 use Drupal\package_manager\Stage;
 
 /**
- * An updater to update extensions and not core.
+ * Defines a service to perform updates to Automatic Updates Extension module.
+ *
+ * Currently, only updates to Drupal core are supported.
+ * This updater will provide updates to the automatic updates extension module.
  */
 class ExtensionUpdater extends Stage {
 }