GADRewardedAd
@interface GADRewardedAd
    : NSObject <GADAdMetadataProvider, GADFullScreenPresentingAd>A rewarded ad. Rewarded ads are ads that users have the option of interacting with in exchange for in-app rewards.
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                  The ad unit ID. DeclarationSwift var adUnitID: String { get }Objective-C @property (nonatomic, readonly, nonnull) NSString *adUnitID;
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                  Information about the ad response that returned the ad. DeclarationSwift var responseInfo: ResponseInfo { get }Objective-C @property (nonatomic, readonly, nonnull) GADResponseInfo *responseInfo;
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                  The reward earned by the user for interacting with the ad. DeclarationSwift var adReward: AdReward { get }Objective-C @property (nonatomic, readonly, nonnull) GADAdReward *adReward;
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                  Options specified for server-side user reward verification. Must be set before presenting this ad. DeclarationSwift @NSCopying var serverSideVerificationOptions: ServerSideVerificationOptions? { get set }Objective-C @property (nonatomic, copy, nullable) GADServerSideVerificationOptions *serverSideVerificationOptions;
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                  Delegate for handling full screen content messages. DeclarationSwift weak var fullScreenContentDelegate: (any FullScreenContentDelegate)? { get set }Objective-C @property (nonatomic, weak, nullable) id<GADFullScreenContentDelegate> fullScreenContentDelegate;
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                  Called when the ad is estimated to have earned money. Available for allowlisted accounts only. DeclarationSwift var paidEventHandler: GADPaidEventHandler? { get set }Objective-C @property (nonatomic, copy, nullable) GADPaidEventHandler paidEventHandler;
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                  An identifier for a placement in reporting. This property must be set prior to presenting the ad. DeclarationSwift var placementID: Int64 { get set }Objective-C @property (nonatomic) int64_t placementID;
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                  Loads a rewarded ad. DeclarationSwift class func load(with adUnitID: String, request: Request?) async throws -> RewardedAdObjective-C + (void)loadWithAdUnitID:(nonnull NSString *)adUnitID request:(nullable GADRequest *)request completionHandler: (nonnull GADRewardedAdLoadCompletionHandler)completionHandler;ParametersadUnitIDAn ad unit ID created in the AdMob or Ad Manager UI. requestAn ad request object. If nil, a default ad request object is used. completionHandlerA handler to execute when the load operation finishes or times out. 
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                  Loads a rewarded ad. DeclarationSwift class func load(with adResponseString: String) async throws -> RewardedAdObjective-C + (void)loadWithAdResponseString:(nonnull NSString *)adResponseString completionHandler:(nonnull GADRewardedAdLoadCompletionHandler) completionHandler;ParametersadResponseStringA server-to-server ad response string. completionHandlerA handler to execute when the load operation finishes or times out. 
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                  Indicates whether the rewarded ad can be presented from the provided root view controller. Must be called on the main thread. DeclarationSwift @MainActor func canPresent(from rootViewController: UIViewController?) throwsObjective-C - (BOOL)canPresentFromRootViewController: (nullable UIViewController *)rootViewController error:(NSError *_Nullable *_Nullable)error;Return ValueYESif the rewarded ad can be presented from the provided root view controller,NOotherwise.
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                  Presents the rewarded ad. Must be called on the main thread. DeclarationSwift @MainActor func present(from rootViewController: UIViewController?, userDidEarnRewardHandler: @escaping GADUserDidEarnRewardHandler)Objective-C - (void)presentFromRootViewController: (nullable UIViewController *)rootViewController userDidEarnRewardHandler: (nonnull GADUserDidEarnRewardHandler)userDidEarnRewardHandler;ParametersrootViewControllerA view controller to present the ad. If nil, attempts to present from the top view controller of the application’s main window. userDidEarnRewardHandlerA handler to execute when the user earns a reward.