Update bin/build_label_model.py
Update bin/build_label_model.py

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Co-authored-by: shankari <52585e8ec27a51541558101da8c5ed713d6a4cbe@eecs.berkeley.edu>
shankari/e-mission-server,e-mission/e-mission-server,e-mission/e-mission-server,shankari/e-mission-server,shankari/e-mission-server,e-mission/e-mission-server,e-mission/e-mission-server,shankari/e-mission-server