[Haskell-cafe] Dhall for Word8, Word16, Double, etc

Hi, Let's say I have a record type: data Foo = Foo { v :: Word16 } I want to have a FromDhall instance for Foo. I know this is easy to do if v is Integer instead of Word16. But v is Word16. Does Dhall enable the user to cleanly express how to input a Word16 with the requisite range checks, or is the user expected to only use Integer and do his own conversion and range checks within Haskell after inputting the Integer from Dhall? I have a record with Word32, Word16, Word8 & Double fields instead of Integer & Scientific.