code: def ui_info(self, ui_info):
          
          if not isinstance(ui_info, UIInfoDesc):
              raise TypeError("ui_info must be of type UIInfoDesc")
          self._ui_info = ui_info
docs: Set an ui info to the description
          :type ui_info: satosa.metadata_creation.description.UIInfoDesc
          :param ui_info: The ui info to be set