def __init__(self, redis_conn, cat_id):
        self.cat_id = cat_id
        self.redis_conn = redis_conn
:reference: https://dev.twitter.com/rest/reference/get/statuses/mentions_timeline
dataset/ETHPy150Open gmcquillan/firetower/firetower/category.py/TimeSeries.__init__--crossover with--dataset/ETHPy150Open tweepy/tweepy/tweepy/api.py/API.mentions_timeline