在modelscope-funasr用最新的版本，会出现这个报错，怎么回事 ？

在modelscope-funasr用最新的版本，会出现这个报错，怎么回事？NameError: name 'ClusterBackend' is not defined /conda/lib/python3.10/site-packages/funasr/auto/auto_model.py:155, in AutoModel.init(self, kwargs)
153 spk_kwargs["device"] = kwargs["device"]
154 spk_model, spk_kwargs = self.build_model(spk_kwargs)
--> 155 self.cb_model = ClusterBackend().to(kwargs["device"])
156 spk_mode = kwargs.get("spk_mode", "punc_segment")
157 if spk_mode not in ["default", "vad_segment", "punc_segment"]: