preparePaywallForDisplay

NamiPaywallManager.preparePaywallForDisplay(developerPaywallID: String, backgroundImageRequired: Bool, imageFetchTimeout: Float) { (success: Bool, error: Error?) in
  // raise paywall if success is true                                                                                                                                 
}

[NamiPaywallManager preparePaywallForDisplayWithDeveloperPaywallID:@"Paywall1" backgroundImageRequired:BOOL imageFetchTimeout:10.0 prepareHandler:^((BOOL) success, (NSError * _Nullable) error) {
  // display paywall or handle error  
}];

[NamiPaywallManager preparePaywallForDisplayWithBackgroundImageRequired:BOOL imageFetchTimeout:FLOAT prepareHandler:^((BOOL) success, (NSError * _Nullable) error) {
  // display paywall or handle error
}];

NamiPaywallManager.preparePaywallForDisplay { success, error ->
  // RaisePaywall if success or react to error
}

NamiPaywallManager.preparePaywallForDisplay(new NamiResultCallback<PreparePaywallResult>() {
            @Override
            public void invoke(PreparePaywallResult result) {
                result.onSuccessOrElse(new NamiSuccessHandler() {
                    @Override
                    public void invoke() {
                        NamiPaywallManager.raisePaywall(activity);
                    }
                }, new NamiFailureHandler<PreparePaywallError>() {
                    @Override
                    public void invoke(@NonNull PreparePaywallError error) {
                        Log.d("TAG", "preparePaywallForDisplay Error -> " + error);
                    }
                });
            }
        });

var preparePaywallResult = await NamiPaywallManager.preparePaywallForDisplay();