Are you sure this is correct?You can build aSelectionList with tuples or Selection objects, but here it looks like you're trying to useSelectionType?

not really sure which one to use, given thatOptionList'sset_option method only takes in an IterableOptionListContent

I'm confused, Did you check your code actually worked, or just throw the PR over the wall?

The general code worked, but I'm not sure about which class to use as the type hint for the function

Sorry, I think I understand the problem now.

I thought the signature would just be similar to theSelectionList.add_options method:

But of course this doesn't satisfy mypy and friends forsuper().set_options(options).

I realise now that I overlooked that this actually ends up callingSelectionList.add_options. Repeating the same runtime checks in bothset_option andadd_options would definitely be "sort of sub-optimal"!