Use existing JS Websocket

Hello, I am wondering, with this library, is it possible to use an existing WebSocket that was created in JS land, something like

```go

exportConnect := js.FuncOf(func(this js.Value, args []js.Value) any {
// ...

socket := args[0]
conn, _, err := websocket.From(ctx, socket)
netconn := websocket.NetConn(ctx, conn, websocket.MessageBinary)

// ...
})
js.Global().Set("go__connect", exportConnect)
```