#include <Standard_Boolean.hxx>
#include <Standard_OStream.hxx>
#include <TDF_AttributeIndexedMap.hxx>
-class Standard_DomainError;
-class TDF_Data;
class TDF_Label;
-class TDF_LabelNode;
-class TDF_AttributeIterator;
class TDF_DeltaOnForget;
class Standard_GUID;
class TDF_AttributeDelta;