#ifndef _StepBasic_ExternalSource_HeaderFile
#include <StepBasic_ExternalSource.hxx>
#endif
#ifndef _StepBasic_SourceItem_HeaderFile
#include <StepBasic_SourceItem.hxx>
#endif
#ifndef _StepBasic_ExternallyDefinedItem_HeaderFile
#include <StepBasic_ExternallyDefinedItem.hxx>
#endif