/// <summary> /// Opens the underlying connection. /// </summary> /// <param name="transport"></param> /// <param name="cancellationToken"></param> /// <returns></returns> protected async ValueTask <StompConnection> OpenAsync(StompTransport transport, CancellationToken cancellationToken) { var connection = new StompConnection(transport, options, logger); await connection.OpenAsync(cancellationToken); await connection.ConnectAsync(null, null, null, null, cancellationToken); return(connection); }