def range=(v)
      DataTypeValidator.validate "#{self.class}.range", [String], v
      if v.is_a?(String)
        @range = v
      end
    end
def range=(v)
      DataTypeValidator.validate "#{self.class}.range", [String], v
      if v.is_a?(String)
        @range = v
      end
    end
(see #range)