code: def GET_savedparameteritemvalues(self) -> None:
          
          dict_ = state.parameteritemvalues.get(self._id)
          if dict_ is None:
              self.GET_parameteritemvalues()
          else:
              for name, value in dict_.items():
                  self._outputs[name] = value
docs: Get the previously saved values of those |ChangeItem| objects
          which are handling |Parameter| objects.