AttributeError: 'str' object has no attribute 'detach'

[FLxuRu]

encoder.py这个文件中的vec是str类型，vec.detach()这样写会报错，请问作者这里是不是去掉detach()

def get_bert_vec(self, text, text_mask, text_pos=None):
if text_pos is None:
_, _, text_vecs = self.bert(text, text_mask)
else:
_, _, text_vecs = self.bert(text, text_mask, position_ids=text_pos)
text_vecs = list(text_vecs)
if self.detach_ptm_flag:
for i, vec in enumerate(text_vecs):
text_vecs[i] = vec.detach()
return text_vecs

[BaberMuyu]

这是transformers的版本问题，我用的是transformers 3.0.2