problim with amazon banner ad ?

hi: i done every thing fine but i am stuck in this line of code 1. // savedAdObject is an Ad object that you received back when you called CreateFloatingBannerAd. 2. //Call method, passing in savedAdObject. 3. // This method returns a LoadingStarted object. LoadingStarted response = mobileAds.LoadAndShowFloatingBannerAd(savedAdObject); i can't understand what (savedAdObject) means ?

and here is the link for the script example : https://developer.amazon.com/public/apis/earn/mobile-ads/unity/mobile-ads-plugin-methods-and-events-for-unity#LoadAndShowFloatingBannerAd