Subject equivalent?

We need a way to imperatively pipe events into a AsyncSequence same asi Subjects from Combine did, or Kotlin's MutableState/SharedFlow

AsynchChannel feels like a low level primitive to be used for state tracking the way CurrentValueSubject was

Start by comparing the requested imperative AsyncSequence behavior with AsyncChannel, Combine Subjects, Kotlin MutableState/SharedFlow, and CurrentValueSubject. Done would mean defining and implementing a clear API for piping events into an AsyncSequence, but this issue does not name files or tests to guide the work.

Written by the indexing model from the issue text.