def get_possible_values(self, game_state: Dict[str, Any], row: int, col: int) -> List[str]:
        """Get possible values ('e' for empty or 's' for star) for a given cell."""
        board = game_state["board"]

        # If the cell is already filled with 'e' or 's', return empty list
        if board[row][col] in ['s', 'e']:
            return []

        # Try both values and return those that don't immediately violate constraints
        possible = []
        for val in ['s', 'e']:
            board[row][col] = val
            if self.check(game_state):
                possible.append(val)
            board[row][col] = 0  # Reset to initial state
        return possible
Get possible values ('e' for empty or 's' for star) for a given cell.
vlmeval/dataset/utils/vgrpbench/puzzles/starbattle.py