code: def label_empty(self, **kwargs):
          "Label every item with an `EmptyLabel`."
          kwargs['label_cls'] = EmptyLabelList
          return self.label_from_func(func=lambda o: 0., **kwargsf label_empty(self, **kwargs):
          "Label every item with an `EmptyLabel`."
          kwargs['label_cls'] = EmptyLabelList
          return self.label_from_func(func=lambda o: 0., **kwargs)
docs: Label every item with an `EmptyLabel`.