Implement a Request-Response approach

[rohitsangwan01]

Hey its a really nice plugin, only thing missing FOR ME is get back response easily, i know there are workarounds to do that, but it would be great to have such functionality inbuilt, and for that i think one of the approach we can apply is something like this Rust plugin
https://github.com/oguzbilgener/bmrng

So basically, we can add one more method: sendSignalToRustAsyncor something like this, which can return the result back,
Maybe with a timeout as well

var result = await SomeMethod().sendSignalToRustAsync();

and on the Rust side, we can respond with something like mentioned in that library

    tokio::spawn(async move {
        while let Ok((input, mut responder)) = rx.recv().await {
            // Respond back to Dart
            responder.respond(input * input)
        }
    });

[poborin]

I agree. Simply returning a value instead of a stream might be very useful in some cases. For instance, I'm creating a conversational thread and I'm returning a thread Id for further reference. I don't need a stream for that, but rather an async result.