code: function init(){
      if(!cacheServiceConfig) {
        cacheServiceConfig = {};
      }
      self.nameSpace = cacheServiceConfig.nameSpace || '';
      self.verbose = (typeof cacheServiceConfig.verbose === 'boolean') ? cacheServiceConfig.verbose : false;
      self.writeToVolatileCaches = (typeof cacheServiceConfig.writeToVolatileCaches === 'boolean') ? cacheServiceConfig.writeToVolatileCaches : true;
      self.caches = new CacheCollection({nameSpace: self.nameSpace, verbose: self.verbose}, cacheModules).caches;
      self.cachesLength = self.caches.length;
    }
docs: ****************************************** PRIVATE FUNCTIONS *******************************************
   
  Initialize cacheService given the provided constructor params