如何使用swift通过wss连接到MQTT？

import Moscapsule
import Starscream

class MQTTManager: WebSocketDelegate {
    var mqttClient: MQTTClient?
    var webSocket: WebSocket?

    func connectToMQTTBroker() {
        // Create WebSocket connection
        let webSocketURL = "wss://mqtt.example.com:8883"
        webSocket = WebSocket(url: URL(string: webSocketURL)!)
        webSocket?.delegate = self
        webSocket?.connect()

        // Set MQTT connection parameters
        let mqttConfig = MQTTConfig(clientId: "your_client_id", host: "mqtt.example.com", port: 8883, keepAlive: 60)
        mqttConfig.mqttAuthOpts = MQTTAuthOpts(username: "your_username", password: "your_password")

        // Connect to MQTT broker
        mqttClient = MQTT.newConnection(mqttConfig)

        // Subscribe to a topic
        mqttClient?.subscribe("your_topic", qos: 0)
    }

    // WebSocketDelegate methods
    func websocketDidConnect(socket: WebSocketClient) {
        print("WebSocket connected")
    }

    func websocketDidDisconnect(socket: WebSocketClient, error: Error?) {
        print("WebSocket disconnected")
    }

    func websocketDidReceiveMessage(socket: WebSocketClient, text: String) {
        print("WebSocket received message: \(text)")
    }

    // MQTT message received callback
    func mqttMessageReceived(message: MQTTMessage, from topic: String, retained: Bool) {
        print("MQTT message received: \(message.payloadString)")
    }
}

// Usage
let mqttManager = MQTTManager()
mqttManager.connectToMQTTBroker()