public class DuctSizeSettings : Element, IEnumerable<KeyValuePair<DuctShape, DuctSizes>>
Public Class DuctSizeSettings _ Inherits Element _ Implements IEnumerable(Of KeyValuePair(Of DuctShape, DuctSizes))
public ref class DuctSizeSettings : public Element, IEnumerable<KeyValuePair<DuctShape, DuctSizes^>>