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VCConformsToNetworkStatusListener.swift

extension ViewController: NetworkStatusListener {
    
    func networkStatusDidChange(status: Reachability.NetworkStatus) {
        
        switch status {
        case .notReachable:
            debugPrint("ViewController: Network became unreachable")
        case .reachableViaWiFi:
            debugPrint("ViewController: Network reachable through WiFi")
        case .reachableViaWWAN:
            debugPrint("ViewController: Network reachable through Cellular Data")
        }
    }
}