why i can't find Android Manifest inside stagingArea

I want to make test for connect google admob with unity game for android . Im using unity 5 last version and SDK last version.

I maked empty project then i added ( google-play-services_lib ) to Assets then i imported ( GoogleMobileAds.unitypackage ) then I saved scene in build setting and click build to see Android Manifest inside stagingArea but I can't find it . I want maked that because to add manifest in android folder inside assets. but I can't see it just manifest-main.. I hope someone help me how to fix that ???