Update rasa/utils/tensorflow/models.py
Update rasa/utils/tensorflow/models.py

Co-authored-by: Sam Sucik <c891bddd8590361a26d822addbb77b5e888cd6f5@rasa.com>
RasaHQ/rasa_nlu,RasaHQ/rasa_nlu,RasaHQ/rasa_nlu