System/Library/PrivateFrameworks/EmailFoundation.framework

_EFBlockObservable.h

Download _EFBlockObservable.h

1. NSObject
2. >
3. EFObservable

@interface _EFBlockObservable : EFObservable {
    id /* block */ _block;
}

- (id)initWithBlock:(id /* block */)a0;
- (id)subscribe:(id)a0;
- (void).cxx_destruct;

@end