class ServerCache {

    public ConfigResponse get(ConfigCacheKey key) {
        String md5 = md5Sums.get(key);
        if (md5 == null) return null;
        return md5ToConfig.get(md5);
    }

    public  ServerCache(ConfigDefinitionRepo builtinConfigDefinitions, ConfigDefinitionRepo userConfigDefinitions);
    public  ServerCache();

}