Async Show-InstallationPrompt without Buttons. How to close it?

If you take Example 3 in the documentation:

Show-InstallationPrompt -Message 'You can customize text to appear at the end of an install, or remove it completely for unattended installations.' -Icon Information -NoWait

it opens an async InstallationPrompt with no buttons. But how can you ever close this one??? Even after the whole script finishes, this stays open forever. You cannot X it away, it immediately reopens itself.

I’d use that for prompting to plug in AC. It should go away after AC is connected. (Test-Battery etc…)

For Show-InstallationPrompt, buttons are optional.
Use the one of the -ButtonXXXXText parameters like -ButtonLeftText