@class NSArray; @interface STMapViewport : STSiriModelObject @property (nonatomic) double northLatitude; @property (nonatomic) double southLatitude; @property (nonatomic) double eastLongitude; @property (nonatomic) double westLongitude; @property (nonatomic) double timeSinceViewportChanged; @property (nonatomic) double timeSinceViewportEnteredForeground; @property (copy, nonatomic) NSArray *viewportVertices; + (BOOL)supportsSecureCoding; - (void)encodeWithCoder:(id)a0; - (void).cxx_destruct; - (id)initWithCoder:(id)a0; - (id)_aceContextObjectValue; @end