How to use the aiocache.caches.get function in aiocache

"default": {
                    "cache": "aiocache.RedisCache",
                    "endpoint": "127.0.0.10",
                    "port": 6378,
                    "serializer": {"class": "aiocache.serializers.PickleSerializer"},
                    "plugins": [
                        {"class": "aiocache.plugins.HitMissRatioPlugin"},
                        {"class": "aiocache.plugins.TimingPlugin"},
                    ],
                },
                "alt": {"cache": "aiocache.SimpleMemoryCache"},
            }
        )

        default = caches.get("default")
        alt = caches.get("alt")

        assert isinstance(default, RedisCache)
        assert default.endpoint == "127.0.0.10"
        assert default.port == 6378
        assert isinstance(default.serializer, PickleSerializer)
        assert len(default.plugins) == 2

        assert isinstance(alt, SimpleMemoryCache)

{
                "default": {
                    "cache": "aiocache.RedisCache",
                    "endpoint": "127.0.0.10",
                    "port": 6378,
                    "serializer": {"class": "aiocache.serializers.PickleSerializer"},
                    "plugins": [
                        {"class": "aiocache.plugins.HitMissRatioPlugin"},
                        {"class": "aiocache.plugins.TimingPlugin"},
                    ],
                },
                "alt": {"cache": "aiocache.SimpleMemoryCache"},
            }
        )

        default = caches.get("default")
        alt = caches.get("alt")

        assert isinstance(default, RedisCache)
        assert default.endpoint == "127.0.0.10"
        assert default.port == 6378
        assert isinstance(default.serializer, PickleSerializer)
        assert len(default.plugins) == 2

        assert isinstance(alt, SimpleMemoryCache)

"endpoint": "127.0.0.10",
                    "port": 6378,
                    "ttl": 10,
                    "serializer": {
                        "class": "aiocache.serializers.PickleSerializer",
                        "encoding": "encoding",
                    },
                    "plugins": [
                        {"class": "aiocache.plugins.HitMissRatioPlugin"},
                        {"class": "aiocache.plugins.TimingPlugin"},
                    ],
                }
            }
        )

        cache = caches.get("default")
        assert isinstance(cache, RedisCache)
        assert cache.endpoint == "127.0.0.10"
        assert cache.port == 6378
        assert cache.ttl == 10
        assert isinstance(cache.serializer, PickleSerializer)
        assert cache.serializer.encoding == "encoding"
        assert len(cache.plugins) == 2

def get_cache(namespace=None):
    if namespace is None:
        return aiocache.caches.get('default')

    try:
        return aiocache.caches.get(namespace)
    except KeyError:
        pass

    _cache_config = aiocache.caches.get_alias_config('default')
    base_namespace = _cache_config['namespace']
    if not base_namespace:
        actual_namespace = namespace
    else:
        actual_namespace = '_'.join((base_namespace, namespace))
    _cache_config['namespace'] = actual_namespace
    aiocache.caches.add(namespace, _cache_config)
    return aiocache.caches.get(namespace)