Comparable.Validate
module T : sig ... end
val validate_lbound : min:T.t Base.Maybe_bound.t -> T.t Base.Validate.check
val validate_ubound : max:T.t Base.Maybe_bound.t -> T.t Base.Validate.check
val validate_bound : min:T.t Base.Maybe_bound.t -> max:T.t Base.Maybe_bound.t -> T.t Base.Validate.check