Function concurrencyIsSequential

repos/effect/packages/effect/src/Channel.ts:1843–1845

(
  concurrency: number | "unbounded" | undefined
)

    )
  })
  return Effect.as(
    Scope.addFinalizer(
      options.scope,
      options.releaseLockOnEnd
        ? Effect.sync(() => reader.releaseLock())
        : Effect.promise(() => reader.cancel().catch(constVoid))