Sure do, I haven't actually used this one (I implemented it just then) but it should do the trick: https://gist.github.com/joeycumines/6206f2a6cd79875c7c164738...
The one I slapped together works, but this one is better (fixes issues with actually stopping it properly): https://github.com/joeycumines/generator-ticker
On NPM as generator-ticker.
Hurt my head a little, but it's fixed now, and I'm at least moderately confident it's correct - unit tested the behavior step by step using `ts-chan`, actually. Will probably use that test as another example use case.