read xml object
        :param url: contents url
        :param features: markup provider
        :param timestamp: game day
        :param game_number: game number
        :return: pitchpx.game.game.Game object

def read_xml(cls, url, features, timestamp, game_number):
        """
        read xml object
        :param url: contents url
        :param features: markup provider
        :param timestamp: game day
        :param game_number: game number
        :return: pitchpx.game.game.Game object
        """
        soup = MlbamUtil.find_xml("".join([url, cls.FILENAME]), features)
        return cls._generate_game_object(soup, timestamp, game_number)