communicate super requirements of models properly

mlair/model_modules/abstract_model_class.py

@@ -253,5 +253,17 @@ class AbstractModelClass(ABC):
     def own_args(cls, *args):
         """Return all arguments (including kwonlyargs)."""
         arg_spec = inspect.getfullargspec(cls)
-        list_of_args = arg_spec.args + arg_spec.kwonlyargs
-        return remove_items(list_of_args, ["self"] + list(args))
+        list_of_args = arg_spec.args + arg_spec.kwonlyargs + cls.super_args()
+        return list(set(remove_items(list_of_args, ["self"] + list(args))))
+
+    @classmethod
+    def super_args(cls):
+        args = []
+        for super_cls in cls.__mro__:
+            if super_cls == cls:
+                continue
+            if hasattr(super_cls, "own_args"):
+                # args.extend(super_cls.own_args())
+                args.extend(getattr(super_cls, "own_args")())
+        return list(set(args))
+