[REQUEST] Ability to get size of the persistable data in Verse

It would be nice to have the ability to get size of the persistable data in Verse. It will allow us to scale down appropriately. For example, if I have 7 houses players can decorate and I know average data for each house and altogether it is very close or exceeds the limit, then I can reduce number of houses etc.

We already have FitsInPlayerMap but it does not say how close to the limit