Update main.py

main.py

@@ -193,8 +193,7 @@ async def sms_posts(instance: ResultItem, idx: str = None, action: str = "add")
                     await session.delete(existing)  # Asynchronous
                     await session.commit()                    
                 else: # update
-                    existing.update(instance)
-                    session.add(existing)  # Not asynchronous
+                    vars(existing).update(vars(instance))
                     await session.commit()
                     await session.refresh(instance)
                     result = instance