@protocol GADCustomEventNativeAdDelegate <NSObject>
The delegate of the GADCustomEventNativeAd object must adopt the GADCustomEventNativeAdDelegate protocol. Methods in this protocol are used for native ad’s custom event communication with the Google Mobile Ads SDK.
Tells the delegate that the custom event ad request failed.
Tells the delegate that the custom event ad request succeeded and loaded a unified native ad.
func customEventNativeAd(_ customEventNativeAd: GADCustomEventNativeAd, didReceive mediatedUnifiedNativeAd: GADMediatedUnifiedNativeAd)