def parse_row(self, response, row):
        raise NotImplementedError
Parse an at-rule.
dataset/ETHPy150Open wcong/ants/ants/contrib/spiders/feed.py/CSVFeedSpider.parse_row--crossover with--dataset/ETHPy150Open FichteFoll/CSScheme/tinycsscheme/tinycss/css21.py/CSS21Parser.parse_at_rule