plugin for native - metadata.lua, coronamanifest

Hi.
I’m trying to use admob plugin for android - native project.
I copied the jar file to the project/android/app/libs folder,
but I don’t know what to do with metadata.lua

coronaManifest = {
dependencies = {
[“shared.google.play.services.ads”] = “com.coronalabs”
}
}

What should I do with this one?
Where to modify?
thanks.

I don’t know much knowledge about native builds but is this relevant?

Thanks.
I already read it several times, but it applies to only older versions(or at least several months before)
Download script doesn’t work now, so I have to download it manually(I did).
But I don’t know what to do with the metadata.lua files. especially dependency parts…