using System; namespace MQTTnet.Server { public class MqttClientSubscribedTopicEventArgs : EventArgs { public MqttClientSubscribedTopicEventArgs(string clientId, TopicFilter topicFilter) { ClientId = clientId ?? throw new ArgumentNullException(nameof(clientId)); TopicFilter = topicFilter ?? throw new ArgumentNullException(nameof(topicFilter)); } public string ClientId { get; } public TopicFilter TopicFilter { get; } } }