Dynamically creating and modifying shortcuts

I am needing to add/delete shortcuts in our app without using the Add to Siri button. But have been stymied at every turn. The most recent example is some code that uses an "AppShortcutCenter" call, supposedly added in iOS 17. But there is no such thing as that which I can find. What gives, and what's needed to do custom shortcuts on demand programmatically?

Dynamically creating and modifying shortcuts
 
 
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