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Also, `api.getArtists()` is a suspending function itself so I haven't quite figured out how to overcome that yet since `buildIterator` is not a suspending context

It depends, do you want it to be eager or lazy?

If you want it to be eager, I'd recommend not using `buildIterator`. Just build a list yourself.

If you want it to be lazy, I'd recommend a `producer`.

<@UBJF87EBY> is producer something implemented in the kotlin libraries that I'm not seeing, or are you talking about the producer-consumer pattern? 

There's a `produce` function in the kotlinx.coroutines library.