BBTK_CATEGORY("__CATEGORY__");
BBTK_INPUT(PolyDataWriterPlus,InPrePersistObs1,"Who will be notified before persist", vtkCommand*,"");
BBTK_INPUT(PolyDataWriterPlus,InPostPersistObs1,"Who will be notified after persist", vtkCommand*,"");
BBTK_CATEGORY("__CATEGORY__");
BBTK_INPUT(PolyDataWriterPlus,InPrePersistObs1,"Who will be notified before persist", vtkCommand*,"");
BBTK_INPUT(PolyDataWriterPlus,InPostPersistObs1,"Who will be notified after persist", vtkCommand*,"");