How would I write a reactive store / component (i....

# coroutines

[ursus]

How would I write a reactive store / component (i.e something that has its own state, mutator and exposes a observable?) using Flow? In rxjava it would look like this

class FooStore {
   private val relay = BehaviorRelay.create<State>
   val state: Observable<State>
      get() = relay

   fun mutate(someParams) = relay.accept(relay.value.copy(someParams))
}