Just bumping this - in BATCH mode is there a way to get ProcessFunction timers to fire interleaved with the events being processed? Or do they always only fire at the end of time?

Noob question, which situations/patterns would suite batch move better than streaming mode.

If we want to bootstrap state for an ML feature extraction pipeline where we want counters that count things over long periods (like a year). Or to backfill those counters, eg. for training a new customer.