This construct causes code to be less generic than indicated by the type annotations. The type variable 'T has been constrained to be type 'Result<'a,int>'.

The instantiation of the generic type 'Const' is missing and can't be inferred from the arguments or return type of this member. Consider providing a type instantiation when accessing this type, e.g. 'Const<_,_>'.

This construct causes code to be less generic than indicated by the type annotations. The type variable 'Applicative<'T> has been constrained to be type 'Const< ^a,Result<'b,int>>'.