如何停止在swift中检测对象？

class Observer {
    var object: NSObject
    
    init(object: NSObject) {
        self.object = object
        object.addObserver(self, forKeyPath: "property", options: [.new, .old], context: nil)
    }
    
    func stopObserving() {
        object.removeObserver(self, forKeyPath: "property")
    }
    
    // 观察者方法
    override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
        // 处理属性变化
    }
}

// 停止检测对象
let observer = Observer(object: object)
observer.stopObserving()