Concurrency abstraction that supports semantically blocking until n latches are released. Note that this has 'one-shot' semantics - once the counter reaches 0 then release and await will forever be no-ops
See https://typelevel.org/blog/2020/10/30/concurrency-in-ce3.html for a walkthrough of building something like this
- Companion
- object
class Object
trait Matchable
class Any