provide working example

[arikivandeput]

please provide working example in swiftUI for setting up the client and process the ReceiveMessage
i keep getting errors

import Foundation
import CocoaMQTT
class MQTTManager {

static let shared = MQTTManager()
private init(){
	
}
func mqtt(_ mqtt: CocoaMQTT, didConnectAck ack: CocoaMQTTConnAck) {
	if ack == .accept {
		mqtt.subscribe("bikes", qos: CocoaMQTTQoS.qos1)
	}
}

func setup(){
	
	let mqtt = CocoaMQTT5(clientID: "iOS_Client", host: "2.tcp.eu.ngrok.io", port: 13963)
 
	mqtt.connect()
	mqtt.didReceiveMessage = { mqtt, message, id in
		theReturnString = ("Message received in topic (message.topic) with payload (message.string!)")

// mqtt.didConnectAck = { mqtt, ack in
// print("Connected: (ack)")
// mqtt.subscribe("bikes")
// }
//
// mqtt.didSubscribeTopic = { mqtt, topic, qos in
// print("Subscribed to (topic) with QoS (qos)")
// }
//
// mqtt.didReceiveMessage = { mqtt, message, id in
// guard let string = message.string else {
// print("Received a message but couldn't parse the payload.")
// return
// }
//
// print("Message received in topic (message.topic) with payload (string)")
// }

//
// // The publish can be moved to a more appropriate place after ensuring connection is established
// let publishProperties = MqttPublishProperties()
// publishProperties.contentType = "JSON"
// mqtt.publish("bikes", withString: "from iOS", properties: publishProperties)
//

}

}