get stadium attribute
        :param soup: Beautifulsoup object
        :param name: attribute name
        :return: attribute value

def _get_stadium_attribute(cls, soup, name):
        """
        get stadium attribute
        :param soup: Beautifulsoup object
        :param name: attribute name
        :return: attribute value
        """
        if soup.find('stadium'):
            return soup.stadium[name]
        return MlbamConst.UNKNOWN_FULL