No module named 'wd_search'，this error occurs in parseJsontoFeatures.py

[mikecyy]

The error occured when I run the CASIE project.

The module 'wd_search' seems a custom file，but I didn't find it, and I can't find other parseJsontoFeatures.py file to refer to on the internet. What should I do about this problem?

Related code in parseJsontoFeatures.py:
import wd_search
result=wd_search.wd_search(name)