cleanup the od api interface

api/od_stub.pyi

@@ -0,0 +1,9 @@
+from typing import Optional
+from uuid import UUID
+
+from od_stub_readonly import *
+
+def create_object(object_name: Optional[str], class_name: str) -> UUID: ...
+def create_link(link_name: Optional[str], assoc_name: str, src: UUID, tgt: UUID) -> UUID: ...
+def delete(obj: UUID) -> None: ...
+def set_slot_value(obj: UUID, attr_name: str, new_value: any, is_code=False) -> None: ...