def populate_class_members(self, element_cls, prop_name):
        """
        Add the appropriate methods to *element_cls*.
        """
        super(OneOrMore, self).populate_class_members(
            element_cls, prop_name
        )
        self._add_list_getter()
        self._add_creator()
        self._add_inserter()
        self._add_adder()
        self._add_public_adder()
        delattr(element_cls, prop_name)
Add the appropriate methods to *element_cls*.