@interface MenstrualCyclesAppPlugin.CycleLoggingDataProvider : _TtCs12_SwiftObject <HKMCViewModelProviderObserver> {
    void /* unknown type, empty encoding */ observers;
    void /* unknown type, empty encoding */ analysisProvider;
    void /* unknown type, empty encoding */ calendarCache;
    void /* unknown type, empty encoding */ menstrualCyclesStore;
    void /* unknown type, empty encoding */ changes;
    void /* unknown type, empty encoding */ viewModelProvider;
    void /* unknown type, empty encoding */ currentDay;
}

- (void)viewModelProviderDidUpdate:(id)a0;

@end