System/Library/PrivateFrameworks/PreviewsFoundation.framework
_TtCC18PreviewsFoundation17DelayedInvocationP33_3F9A6BB13CF14F159F01BBDC160BCE9124BaseDelayedInvocationBox.h
@interface _TtCC18PreviewsFoundation17DelayedInvocationP33_3F9A6BB13CF14F159F01BBDC160BCE9124BaseDelayedInvocationBox : _TtCs12_SwiftObject
@end