Example of use with (or instead of) fileImporter?

I'm having a very difficult time working with `fileImporter`, and from the absolute dearth of information out there about how to work with it, I suspect people are avoiding it with extreme prejudice.

Specifically, I'm struggling with the fact that, unlike other `.sheet` and `.alert` items, it seems to ONLY be usable when attached to a button that toggles a boolean state and it seems to break if you try to use it as anything other than a view modifier.

Unfortunately, I can't avoid it. I need an interface that allows importing files into my app. I'm wondering if you have (or are aware of someone who has) made this work, either using your `files` Library or otherwise.