private async Task SendWebSocketAsync(WebSocket webSocket, WebSocketMessage msg, CancellationToken cancellationToken = default)
{
var buffer = Encoding.ASCII.GetBytes(msg.GetJson());
await webSocket.SendAsync(new ArraySegment <byte>(buffer), WebSocketMessageType.Text, true, cancellationToken);
if (logger != null)
{
await logger.LogDebug($"Sent message {msg.Method}");
}
}