@time.setter
    def time(self, value):
        self._values['time'] = value
Get shard id by mapreduce id and shard number.
dataset/ETHPy150Open Microsoft/ApplicationInsights-Python/applicationinsights/channel/contracts/Envelope.py/Envelope.time--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/mapreduce/model.py/ShardState.shard_id_from_number