def game_over(player_decks):
    """
        Determines if either of the player decks are empty
        and if so, game is over.

        Parameters:
            player_decks -
                Decks for each player

        Returns:
            True if either deck is empty, False otherwise
    """
    return_value = False

    for deck in player_decks:
        if len(deck) == 0:
            print("GAME OVER")
            return_value = True
            break

    return return_value