Defining unit of measure in F# signature file

Question

Is it possible to define a Unit of Measure in a signature file (.fsi)?

I have tried to add it after namespace definition,

[<Measure>] type unitOfMeasure

but the compiler complains "type unitOfMeasure is not defined". I need to re-define it in the implementation file (.fs).

Answer 1

I think the reason might be that Units of Measure are not public visible (for the CLR) - they get erased after/while compilation