System/Library/Frameworks/Foundation.framework

_TtCE10FoundationCSo20NSNotificationCenter13Notifications.h

Download _TtCE10FoundationCSo20NSNotificationCenter13Notifications.h

1. _TtCs12_SwiftObject

@interface _TtCE10FoundationCSo20NSNotificationCenter13Notifications : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ center;
    void /* unknown type, empty encoding */ lock;
}

@end