static public async Task Do(CmdArguments args)
{
var client = RegistryManager.CreateFromConnectionString(Settings.Default.ConnectionString);
var deviceId = args.Ids.Single();
var twin = new Twin(deviceId);
twin.Set(args.KVPairs);
twin = await client.UpdateTwinAsync(deviceId, twin, "*");
IoTHubHelper.OutputDevice(twin);
Console.WriteLine("1 device updated");
}
