def type(self, name):

        return self.server.type(name)
Re-define this to specify a shell command to filter the reducer's
dataset/ETHPy150Open jeff1evesque/machine-learning/brain/cache/redis_query.py/Redis_Query.type--crossover with--dataset/ETHPy150Open Yelp/mrjob/mrjob/job.py/MRJob.reducer_pre_filter