[TOOLS] Continue raising PHPStan level to 6

components/Collection/Util/Controller/FeedController.php

@@ -38,6 +38,11 @@ use App\Entity\Note;
 use App\Util\Common;
 use Functional as F;
 
+/**
+ * @template T
+ *
+ * @extends OrderedCollection<T>
+ */
 abstract class FeedController extends OrderedCollection
 {
     /**
@@ -45,9 +50,11 @@ abstract class FeedController extends OrderedCollection
      * notes or actors the user specified, as well as format the raw
      * list of notes into a usable format
      *
-     * @template T of Note|Actor
-     * @param T[] $result
-     * @return T[]
+     * @template NA of Note|Actor
+     *
+     * @param NA[] $result
+     *
+     * @return NA[]
      */
     protected function postProcess(array $result): array
     {