ReadonlyaggregatesTop-level products (typically a single IfcSite).
ReadonlyclassFull IFC class name (typically 'IfcProject').
Optional ReadonlydescriptionReadonlyglobalOptional ReadonlynameReadonlypropertyReadonlyquantityDepth-first iterator over all products in the project hierarchy.
Project root node. Iterating yields all ModelProduct instances in the hierarchy via depth-first traversal.