[Question] External LM and Beam Search Notebook/Guide?
For anyone looking at this, I dug into the PRs and found this notebook added:

https://github.com/NVIDIA/NeMo/blob/v1.0.0b2/tutorials/asr/Offline_ASR.ipynb
I saw that the v1.0.0b2 tagged release says "Added beam search and external LM rescoring support for character-based CTC ASR models."
Is there a notebook on how to do this, or for now is it easiest to dig around in the code?
