val validate_lbound : min:t Maybe_bound.t -> t Validate.checkval validate_ubound : max:t Maybe_bound.t -> t Validate.checkval validate_bound : min:t Maybe_bound.t -> max:t Maybe_bound.t -> t Validate.checkComparable.Validateval validate_lbound : min:t Maybe_bound.t -> t Validate.checkval validate_ubound : max:t Maybe_bound.t -> t Validate.checkval validate_bound : min:t Maybe_bound.t -> max:t Maybe_bound.t -> t Validate.check