Function async_tungstenite::client_async_with_config

pub async fn client_async_with_config<'a, R, S>(
    request: R, 
    stream: S, 
    config: Option<WebSocketConfig>
) -> Result<(WebSocketStream<S>, Response), WsError> where
    R: IntoClientRequest + Unpin,
    S: AsyncRead + AsyncWrite + Unpin, 

The same as client_async() but the one can specify a websocket configuration. Please refer to client_async() for more details.