Imagine I have a file in iCloud Drive/Sounds/Foo.mp3. I want to play it via the Play sound action in the Shortcuts app.

I need to use Get File. When I use Get File I can choose the iCloud Drive service, but then if I want to hardcode the sound file to play, it asks me to manually enter in the path starting with /Shortcuts/.

I tried entering /Shortcuts/Sounds/Foo.mp3 and /Shortcuts/Sounds/Foo, but both said:

The file doesn't exist.

The file "Foo" couldn't be opened because there is no such file.

How do I specify a path to a file in iCloud Drive in the Shortcuts app?