- WIP on relations, constrains and foreign keys

src/EntityCollection.php

@@ -8,7 +8,7 @@ class EntityCollection extends \ArrayObject implements \JsonSerializable {
 
     public ? string $entityClass = null;
 
-    public static function instance(array $data, null|string $entityClass) : self
+    public static function instance(array $data, null|string $entityClass = null) : self
     {
         $instance = new static($data);
         $instance->entityClass = $entityClass;