Extracts a PiperHub slug from the accepted model reference forms.
Accepted: bare slug (glados-french-medium-voice), hub:<slug>, piperhub:<slug>, or a full page URL (https://piperhub.org/model/<slug>/).
glados-french-medium-voice
hub:<slug>
piperhub:<slug>
https://piperhub.org/model/<slug>/
Model reference to parse.
The slug, or null when the input is not a PiperHub reference.
null
Extracts a PiperHub slug from the accepted model reference forms.
Accepted: bare slug (
glados-french-medium-voice),hub:<slug>,piperhub:<slug>, or a full page URL (https://piperhub.org/model/<slug>/).