code: def style(self, value):
          
  
          if value is not None:
              assert type(value) is Style, "'{0}' attribute: '{1}' type is not 'Style'!".format("style", value)
              style = Style()
              for item in (self.__default_style, value):
                  style.update(item)
              value = style
          self.__style = value
docs: Setter for **self.__style** attribute.
  
          :param value: Attribute value.
          :type value: Style