def makeID(board):
    """
        Function to make unique id's in a board.

        :Parameters:
            `board` : a pymongo.collection.Collection instance

        Returns an integer >= 1
    """
    board.find_one_and_update({'_id': 'count'}, {'$inc': {'count': 1}},
        upsert=True)
    return board.find_one({'_id': 'count'}).get('count')
