In the docs it says:
Subscriber attributes are only synced with RevenueCat servers on app launch, app backgrounded, and when purchases are made or restored.
Is “App launch” meant literally or do they mean once `Purchases.configure(‘SDK_KEY’);` is called?
When exactly should I call `Purchases.setAttributes({ "age" : "24", "custom_group_id" : "abc123" });` then? Before `Purchases.configure();`, or after, or does it not matter because the app has already “launched” and the attributes will only be synced later?