diff --git a/lnschema_core/models.py b/lnschema_core/models.py
index c1d0abc9..dbf6244d 100644
--- a/lnschema_core/models.py
+++ b/lnschema_core/models.py
@@ -527,6 +527,13 @@ def __new__(cls, name, bases, attrs, **kwargs):
             delattr(new_class, name)
         return new_class
 
+    # def __dir__(cls):
+    #     result = type.__dir__(cls)
+    #     for attr in dir(cls):
+    #         if not attr.startswith("__"):
+    #             result.append(attr)
+    #     return result
+
     def from_values(
         cls,
         values: ListLike,