missed a spot in https://github.com/opnsense/core/issues/2670 leading to basemodel to being able to find iterateItems(), previous functionality used a specialized property which was passed using __get()

src/opnsense/mvc/app/models/OPNsense/Base/BaseModel.php

@@ -366,6 +366,15 @@ abstract class BaseModel
         return $this->internalData->setNodes($data);
     }
 
+    /**
+     * iterate (non virtual) child nodes
+     * @return mixed
+     */
+    public function iterateItems()
+    {
+        return $this->internalData->iterateItems();
+    }
+
     /**
      * validate full model using all fields and data in a single (1 deep) array
      * @param bool $validateFullModel validate full model or only changed fields