def callInjector(self, old: Node, trans: Translator) -> Node:
        """ If don't have injector call from parent """
        if self.astTranslatorInjector is None:
            if self.parent is not None:
                # TODO: think if we forward for all StateScope
                # forward to parent scope
                return self.parent().callInjector(old, trans)
            else:
                raise TypeError("Must define an Translator Injector")
        return self.astTranslatorInjector(old, trans)
If don't have injector call from parent