code: def populate_class_members(self, element_cls, prop_name):
          
          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)
docs: Add the appropriate methods to *element_cls*.