@class CLLocation, NSObject; @protocol OS_dispatch_queue; @interface _VLLocalizerAltitudeQuery : NSObject @property (readonly, nonatomic) CLLocation *location; @property (readonly, nonatomic) unsigned long long signpostID; @property (readonly, nonatomic) NSObject<OS_dispatch_queue> *callbackQueue; @property (readonly, nonatomic) id /* block */ callback; - (id)init; - (void).cxx_destruct; - (id)initWithLocation:(id)a0 callbackQueue:(id)a1 callback:(id /* block */)a2; @end