- sub STORE { ... } # mandatory if elements writeable
- sub STORESIZE { ... } # mandatory if elements can be added/deleted
- sub EXISTS { ... } # mandatory if exists() expected to work
- sub DELETE { ... } # mandatory if delete() expected to work
+ sub STORE { ... } # mandatory if elements writeable
+ sub STORESIZE { ... } # mandatory if elements can be added/deleted
+ sub EXISTS { ... } # mandatory if exists() expected to work
+ sub DELETE { ... } # mandatory if delete() expected to work