language models -> bert -> accuracy-squad.py

import numpy as np 
import six
import tokenization
from transformers import BertTokenizer
from create_squad_data import read_squad_examples, convert_examples_to_features

I follow the steps in the readme file and start a docker container to run Bert evaluation. However, I got the above error, and I even can’t find a third module (tokenization) that satisfied the API in the script (accuracy-squad.py).

Can anyone tell me where I can find this module (tokenization)? Thank you very much.