data()->addAttribute(NUMBER_OF_COPIES_ID(), ModelAPI_AttributeInteger::typeId());
data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefList::typeId());
data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefList::typeId());
data()->addAttribute(NUMBER_OF_COPIES_ID(), ModelAPI_AttributeInteger::typeId());
data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefList::typeId());
data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefList::typeId());