AttributeError: 'BertModel' object has no attribute 'model_max_length'

[plum-Yin]

Hi, when I run

model_name = r'batterydata/batterybert-cased'
tokenizer = BertTokenizer.from_pretrained(model_name)
model = BertModel.from_pretrained(model_name, output_attentions=True)

from batterycode.apps import DeviceDataExtractor

extractor = DeviceDataExtractor(model)
sample_text = "The anode of this Li-ion battery is graphite."
result = extractor.extract(sample_text, threshold=0.1)

the result is

AttributeError: 'BertModel' object has no attribute 'model_max_length'

I tried different versions of transformers, but it shows the same results.
Could you tell me what version you use?
Thanks.