[COLAB] No Module named 'pyngrok'

When running the Start Stable-Diffusion cell:

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ModuleNotFoundError Traceback (most recent call last) /tmp/ipykernel_919/3500160051.py in <cell line: 0>() 4 import sys 5 import fileinput ----> 6 from pyngrok import ngrok, conf 7 import re 8

ModuleNotFoundError: No module named 'pyngrok'

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NOTE: If your import is failing due to a missing package, you can manually install dependencies using either !pip or !apt.

To view examples of installing some common dependencies, click the "Open Examples" button below.

I'm not trying to use an ngrok server, though.