@interface _TtCV8Settings39SettingsHostViewControllerRepresentableP33_660F061974F96B10B28E661239591CBA12MutableState : NSObject <_EXHostViewControllerDelegate> {
    void /* unknown type, empty encoding */ role;
    void /* unknown type, empty encoding */ _hostViewController;
    void /* unknown type, empty encoding */ ext;
    void /* unknown type, empty encoding */ completion;
}

- (id)init;
- (void).cxx_destruct;
- (void)hostViewController:(id)a0 didBeginHosting:(id)a1;
- (void)hostViewController:(id)a0 didEndHosting:(id)a1 error:(id)a2;
- (void)hostViewController:(id)a0 didFailToHost:(id)a1 error:(id)a2;
- (void)hostViewController:(id)a0 didPrepareToHost:(id)a1;

@end