[ Prevent a specific field to be overwritten ]

**Question**
Got an object list
> Fed by a Webservice call (via Retrofit library)
> Then persisted in database via Hive
> Every day the WS call is potentially remade and the list is overwritten...

What i'd want ::
> i want to add a Field to those objects, fed manually (not present in the WS call)
> And when i persist again the obectList, that it overwrites the fields given by the WS call but not the one i added manually...

>> Is there a way/annotation that would "lock" a specific field to prevent it from being overwritten when the put method is (re)used on its parent object ?

**Code sample**
no need i think.

**Version**
- Platform: iOS, Android
- Flutter version: 2.12.0
- Hive version: 2.0.4