@property
    def _operator_view_class(self):
        if inspect.isclass(self.__operator_view_class):
            return self.__operator_view_class
        elif isinstance(self.__operator_view_class, six.string_types):
            try:
                module_name, class_name =\
                    self.__operator_view_class.rsplit('.', 1)
                return class_for_name(module_name, class_name)
            except (AttributeError, __HOLE__, ImportError):
                raise WrongOperatorViewClassError(
                    'There is no "%s" class' % self.__operator_view_class
                )
dataset/ETHPy150Open osrg/ryu/ryu/services/protocols/bgp/operator/views/fields.py/RelatedViewField._operator_view_class