code: def get_versus(self):
          
          # game
          game_image = self._game_image_from_screen('versus')
          if game_image is None:
              return None, None, None, None  # nothing else will work
          # board
          board = self._board_from_game_image(game_image)  # may be None
          # safety check. there should be no blanks in a versus board
          if board:
              for p, tile in board.positions_with_tile():
                  if tile.is_blank():
                      board = None
          # actors
          player = self._actor_from_game_image('player', game_image)
          opponent = self._actor_from_game_image('opponent', game_image)
          # extra actions
          extra_actions = self._count_extra_actions(game_image)
          return board, player, opponent, extra_actions
docs: Return the versus board, player, opponent and extra actions.
          Return None for any parts that can't be found.