def register_pool(self, key, pool):
    self._pools[key] = pool
TODO: add docstring
dataset/ETHPy150Open GoogleCloudPlatform/appengine-mapreduce/python/src/mapreduce/context.py/Context.register_pool--crossover with--dataset/ETHPy150Open treasure-data/td-client-python/tdclient/schedule_model.py/Schedule.timezone