def load(key, options = {})
      if options[:sync] || (value = @cache.load(key, options)) == nil
        value = @adapter.load(key, options)
        @cache.store(key, value, options) if value != nil
      end
      value
    end
def load(key, options = {})
      if options[:sync] || (value = @cache.load(key, options)) == nil
        value = @adapter.load(key, options)
        @cache.store(key, value, options) if value != nil
      end
      value
    end
(see Proxy#load)