/// <summary>
/// Gets the GUID for the IFC entity type handle associated with an element.
/// </summary>
/// <param name="familyInstance">The family instance, if it exists.</param>
/// <param name="elementType">The element type to use for GUID generation if the family instance is null.</param>
/// <returns>The GUID.</returns>
public static string GetGUIDForFamilySymbol(FamilyInstance familyInstance, ElementType elementType)
{
if (familyInstance != null)
{
FamilySymbol originalFamilySymbol = ExporterIFCUtils.GetOriginalSymbol(familyInstance);
return(GUIDUtil.CreateGUID(originalFamilySymbol));
}
return(GUIDUtil.CreateGUID(elementType));
}