code: def tool_tip_text(self, value):
          
  
          if value is not None:
              assert type(value) is unicode, "'{0}' attribute: '{1}' type is not 'unicode'!".format(
                  "tool_tip_text", value)
          self.__tool_tip_text = value
docs: Setter for **self.__tool_tip_text** attribute.
  
          :param value: Attribute value.
          :type value: unicode