Flurry for iOS：从屏幕上删除FlurryAdBanner

如何在iOS中删除FlurryAdBanner？我正在搜索类似于

[FlurryAds removedfromspace:space]

； 这是我的FlurryAdBanner集成：

FlurryAdBanner * flurryAdBanner = nil;

-(void)viewWillAppear:(BOOL)animated
{
    flurryAdBanner = [[FlurryAdBanner alloc] initWithSpace:MY_SPACE_NAME_FOR_TOP_BANNER];
    flurryAdBanner.adDelegate = self;
    [flurryAdBanner fetchAndDisplayAdInView:self.view viewControllerForPresentation:self];
}


-(void)adBannerDidFetchAd:(FlurryAdBanner *) localadBanner
{
    [localadBanner displayAdInView:self.view viewControllerForPresentation:self];
}

-(IBAction)removeFluryAd:(id)sender
{

    // Not working - but I'm searching for code, that removes the Banner
    [FlurryAds removeAdFromSpace:MY_SPACE_NAME_FOR_TOP_BANNER];
}