如何从另一个类执行类的CollectionView方法?

我有我的班级卡片传感器,里面有一个集合视图,里面有另一个xib

class CardSensors: UIView {
    @IBOutlet weak var botName: UILabel!
    @IBOutlet weak var sensorsCollectionView: UICollectionView!
    var sensors = [[String: Any]]()

    var viewModel: NewsFeedViewModel! {
        didSet {
            setUpView()
        }
    }

    func setSensors(sensors: [[String: Any]]){
        self.sensors = sensors
    }

    static func loadFromNib() -> CardSensors {
        return Bundle.main.loadNibNamed("CardSensor", owner: nil, options: nil)?.first as! CardSensors
    }

    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code
    }

    func setupCollectionView(){
        let nibName = UINib(nibName: "SensorCollectionViewCell", bundle: Bundle.main)
        sensorsCollectionView.register(nibName, forCellWithReuseIdentifier: "SensorCollectionViewCell")
    }

    func setUpView() {
        botName.text = viewModel.botName
    }

}

extension CardSensors: UICollectionViewDataSource {

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        guard let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "SensorCollectionViewCell", for: indexPath) as? SensorCell else {
            return UICollectionViewCell()
        }

        cell.dateLabel.text = sensors[indexPath.row]["created_at"] as? String
        cell.sensorType.text = sensors[indexPath.row]["type"] as? String
        cell.sensorValue.text = sensors[indexPath.row]["value"] as? String
        cell.sensorImage.image = UIImage(named: (sensors[indexPath.row]["type"] as? String)!)

        return cell
    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {

        return sensors.count
    }

}

我在另一个类中创建了一个这样的对象,但是我希望它调用collectionview的方法来加载信息。

let sensorView = CardSensors.loadFromNib()
sensorView.sensors = sensores
sensorView.setupCollectionView()

问题是collectionview方法从未被调用。我该怎么称呼他们呢?