[ObsoleteAttribute("This property is deprecated in Revit 2023 and may be removed in a later version of Revit. We suggest you use the 'Volume' property instead.")]
public double InnerVolume { get; }

<ObsoleteAttribute("This property is deprecated in Revit 2023 and may be removed in a later version of Revit. We suggest you use the 'Volume' property instead.")> _
Public ReadOnly Property InnerVolume As Double
	Get

[ObsoleteAttribute(L"This property is deprecated in Revit 2023 and may be removed in a later version of Revit. We suggest you use the 'Volume' property instead.")]
public:
property double InnerVolume {
	double get ();
}