@interface RMAttitude : RMLogItem @property (readonly, nonatomic) struct { double x; double y; double z; double w; } quaternion; + (BOOL)supportsSecureCoding; - (void)encodeWithCoder:(id)a0; - (id)description; - (id)initWithCoder:(id)a0; - (id)copyWithZone:(struct _NSZone { } *)a0; - (id)_initWithQuaternion:(struct { double x0; double x1; double x2; double x3; })a0 timestamp:(double)a1; @end