Native Extention to track adwords install

I need some guidance in tracking my adwords install for my Adobe Air ios app. From what I've read, the native code looks something like below

- (BOOL)application: (UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions {

  [GoogleConversionPing pingWithConversionId:@"0123456789" label:@"abCDEFG12hIJk3Lm4nO" value:@"0.99" isRepeatable:NO]; return YES;

}

I already have a few ANE from Freshplanet in my project. Source code from github here https://github.com/freshplanet/ANE-Facebook

and have added a few of my own extensions but in the case to track the AdWords, I'm a bit at a lost as to how/where to include the natice code.

If anybody has done it or could provide an example or some guidance, would be most grateful

Thanks!