Caused by: io.ktor.client.call.NoTransformationFound: No transformation found: class io.ktor.client.engine.cio.CIOHttpResponse -> class io.ktor.client.features.websocket.ClientWebSocketSession
 at io.ktor.client.call.HttpClientCall.receive(HttpClientCall.kt:44)

fun main(args: Array<String>) = runBlocking {
    val json = """{"command":"someCommandName","payload":{"value":101}}"""
    val buffer = ByteBuffer.wrap( json.toByteArray() )
    val frame = Frame.Binary(
            fin = true,
            buffer = buffer
    )
    val job = async {
        val client = HttpClient(CIO).config {
            install(WebSockets)
        }
        client.ws(port = 4567, path = "/post") {
            send(frame)
        }
    }
    job.await()
}