<@U3ZPQ4QR4> `produce {}` is backed by a Channel, ...

# coroutines

[dave08]

@uli produce {} is backed by a Channel, from the original code it looks like needs to make multiple calls to an API and have to handle them downstream with back pressure, but upstream doesn't need that. I think a Channel should be avoided just like an rx Subject, when produce is enough... Unless I'm misunderstanding something?