.get(obj.getChildren().size()-1)
.accept(this, existsContainer.getRecursiveOperatorGraph());
for (int i = 0 ; i < obj.getChildren().size()-1; i++){
existsVar.add(obj.getChildren().get(i).getLabel().substring(1));
existsContainer.addOperator(op);
}
return existsContainer;
}
@Override