--- /dev/null
+<?php
+
+namespace Drupal\metatag;
+
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\DefaultPluginManager;
+
+/**
+ * A Plugin to manage your meta tag group.
+ */
+class MetatagGroupPluginManager extends DefaultPluginManager {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
+ $subdir = 'Plugin/metatag/Group';
+
+ // The name of the annotation class that contains the plugin definition.
+ $plugin_definition_annotation_name = 'Drupal\metatag\Annotation\MetatagGroup';
+
+ parent::__construct($subdir, $namespaces, $module_handler, NULL, $plugin_definition_annotation_name);
+
+ $this->alterInfo('metatag_groups');
+
+ $this->setCacheBackend($cache_backend, 'metatag_groups');
+ }
+
+}