def get_slab(self, namespace, key):
        "Return the slab descriptor for a key."
        try:
            slabkey = self.lru_key[(namespace, key)]
        except __HOLE__:
            return None
        return self.lru_cache[slabkey]
dataset/ETHPy150Open MapQuest/mapquest-osm-server/src/python/datastore/lrucache.py/LRUCache.get_slab