code: def label_const(self, const:Any=0, label_cls:Callable=None, **kwargs)->'LabelList':
          "Label every item with `const`."
          return self.label_from_func(func=lambda o: const, label_cls=label_cls, **kwargsf label_const(self, const:Any=0, label_cls:Callable=None, **kwargs)->'LabelList':
          "Label every item with `const`."
          return self.label_from_func(func=lambda o: const, label_cls=label_cls, **kwargs)
docs: Label every item with `const`.