System/Library/PrivateFrameworks/iCloudQuotaUI.framework

ICQPremiumFlowManager.h

NSObject
>
ICQUpgradeFlowManager

@interface ICQPremiumFlowManager : ICQUpgradeFlowManager

- (void)_configurePresentingViewController:(id)a0;
- (void)beginPremiumFlow;
- (void)beginPremiumFlowWithURL:(id)a0;

@end