use futures::stream::Stream;
use tokio::net::TcpStream;
use tokio_tungstenite::WebSocketStream;

fn get_stream() -> WebSocketStream<TcpStream> {
    todo!()
}

fn impls_stream<T: Stream>(_: T) {}

#[tokio::main]
async fn main() {
    let mut stream = get_stream();
    impls_stream(&mut stream);
}

    tokio::select! {
        _ = stream.send(message) => { }
        _ = stream.next() => { }
    }

    let (mut sink, mut stream) = stream.split();
    tokio::select! {
        _ = sink.send(get_message()) => { }
        _ = stream.next() => { }
    }

    let stream = RefCell::new(stream);
    let send = stream.borrow_mut().send(get_message());
    let receive = stream.borrow_mut().next();