Function accept_hdr_async_with_config

pub async fn accept_hdr_async_with_config<S, C>(
    stream: S,
    callback: C,
    config: Option<WebSocketConfig>,
) -> Result<WebSocketStream<S>, Error>
where
    S: AsyncRead + AsyncWrite + Unpin,
    C: Callback + Unpin,

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