Customizing a property's value based on another in schema generation

With arbitrary schema generation, is it possible to customize a property's value based on another value? For example, say I have an

Account

Account

schema with

amountDue

amountDue

amountPaid

amountPaid

, and

balance

balance

. Ideally, I could get the

amountDue

amountDue

and

amountPaid

amountPaid

and calculate the

balance

balance

so the fake data is correct.

Customizing a property's value based on another in schema generation - Effect Community