def read(key, parameters = {})
      begin
        @memcached.get(normalize(key, parameters))
      rescue Memcached::NotFound, Memcached::Stored
        nil
      end
    end
def read(key, parameters = {})
      begin
        @memcached.get(normalize(key, parameters))
      rescue Memcached::NotFound, Memcached::Stored
        nil
      end
    end
Reads key from the cache.