@interface Foundation._Calendar : _TtCs12_SwiftObject {
void /* unknown type, empty encoding */ lock;
void /* unknown type, empty encoding */ identifier;
void /* unknown type, empty encoding */ ucalendar;
void /* unknown type, empty encoding */ _timeZone;
void /* unknown type, empty encoding */ customFirstWeekday;
void /* unknown type, empty encoding */ customMinimumFirstDaysInWeek;
void /* unknown type, empty encoding */ localeIdentifier;
void /* unknown type, empty encoding */ localePrefs;
void /* unknown type, empty encoding */ customGregorianStartDate;
}
@end