good

cool!

This is super cool!

beautiful

In regards to .format method vs f string literal...

Is there an advantage in regards to one vs the other in terms of runtime, an instance where only one will suffice, etc?

remarkable

I thought I had a moderately decent solution until I saw this.
Very well thought out!

This kata must be retired I guess. :-)

this is surely a joke...?

There aren't any tests. No given function to fill out and the directions are ambiguous. This needs to be redone.

You're right, how strange! Seems like it's probably at least 7kyu as a puzzle kata! :P
But seriously, something must have gone badly wrong, even the author's own reference solution fails the kata when I submit it!

The problem is that there are no tests at all :) I don't know how the author managed to publish it without tests. You can pass if you add a test of your own...

You need some example tests cases to show how this works. When I submit a solution (that seems valid accordig to your description) I get a test failure with no info