- First draft of current WIP

src/Annotation/Property/GroupBy.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Ulmus\Annotation\Property;
+
+class GroupBy implements \Ulmus\Annotation\Annotation {
+
+    public array $fields = [];
+
+    public function __construct(...$field)
+    {
+        if ( $field ) {
+            $this->fields = $field;
+        }
+    }
+}