#include <Standard.hxx>
#include <Handle_StepShape_OrientedOpenShell.hxx>
#include <Handle_StepShape_OpenShell.hxx>
#include <Standard_Boolean.hxx>
#include <StepShape_OpenShell.hxx>
#include <Handle_TCollection_HAsciiString.hxx>
#include <Handle_StepShape_HArray1OfFace.hxx>
#include <Handle_StepShape_Face.hxx>
#include <Standard_Integer.hxx>