public MqttApplicationMessageReceivedEventArgs(MqttApplicationMessage applicationMessage)
 {
     ApplicationMessage = applicationMessage ?? throw new ArgumentNullException(nameof(applicationMessage));
 }
 public MqttApplicationMessageReceivedEventArgs(string clientId, MqttApplicationMessage applicationMessage)
 {
     ClientId           = clientId;
     ApplicationMessage = applicationMessage ?? throw new ArgumentNullException(nameof(applicationMessage));
 }