code: def most_recent(self):
          
          if not self.instance:
              raise TypeError(
                  "Can't use most_recent() without a {} instance.".format(
                      self.model._meta.object_name
                  )
              )
          tmp = []
          excluded_fields = getattr(self.model, "_history_excluded_fields", [])
  
          for field in self.instance._meta.fields:
              if field.name in excluded_fields:
                  continue
              if isinstance(field, models.ForeignKey):
                  tmp.append(field.name + "_id")
              else:
                  tmp.append(field.name)
          fields = tuple(tmp)
          try:
              values = self.get_queryset().values_list(*fields)[0]
          except IndexError:
              raise self.instance.DoesNotExist(
                  "%s has no historical record." % self.instance._meta.object_name
              )
          return self.instance.__class__(*values)
docs: Returns the most recent copy of the instance available in the history.