def get_slab(self, namespace, key):
        try:
            slabkey = self.lru_key[(namespace, key)]
        except KeyError:
            return None
        return self.lru_cache[slabkey]
Reads `init_config` for `psutil` methods to call on the current process
dataset/ETHPy150Open MapQuest/mapquest-osm-server/src/python/datastore/lrucache.py/LRUCache.get_slab--crossover with--dataset/ETHPy150Open serverdensity/sd-agent/checks.d/agent_metrics.py/AgentMetrics._psutil_config_to_stats