#ifndef _TopoDS_Shell_HeaderFile
#include <TopoDS_Shell.hxx>
#endif
#ifndef _TopoDS_Shape_HeaderFile
#include <TopoDS_Shape.hxx>
#endif
#ifndef _TopTools_ListOfShape_HeaderFile
#include <TopTools_ListOfShape.hxx>
#endif
#ifndef _BRepCheck_Shell_HeaderFile
#include <BRepCheck_Shell.hxx>
#endif