code: def clear(self):
          'od.clear() -> None.  Remove all items from od.'
          root = self.__root
          root.prev = root.next = root
          self.__map.clear()
          dict.clear(selff clear(self):
          'od.clear() -> None.  Remove all items from od.'
          root = self.__root
          root.prev = root.next = root
          self.__map.clear()
          dict.clear(self)
docs: od.clear() -> None.  Remove all items from od.