title: How to use AdMob Ad Mediation in Android App?
body: <p>Hi I have used Firebase SDK to integrate AdMob in my Android App. Ads are working fine in my App. Now I want to enable Ad Mediation. I know how to add third party Ad networks in AdMob portal. </p>
  
  <p>Confusion is that do I need to add/change specific code in Android App also? Do I need to change the banner ad code implemented in App? Or Firebase SDK will handle automatically and will show third party ads on same banner? Please help. </p>