Now that `Flow` is there, are channels still the r...

# coroutines

[tseisel]

Now that Flow is there, are channels still the right tool for wrapping callback APIs with `registerListener`/`unregisterListener` ? Looks like flowViaChannel has been written for that purpose, but I don't see a way to "close" a Flow like with channels and Flowables

[gildor]

Flow will be canceled on cancellation of coroutine from which a terminal operator of Flow was called