code: func CacheRemoteFasthttpFunc(bodyHandler fasthttp.RequestHandler, expiration time.Duration, remoteServerAddr string) fasthttp.RequestHandler {
  	return CacheRemoteFasthttp(bodyHandler, expiration, remoteServerAddr).ServeHTTP
  }
docs: // CacheRemoteFasthttpFunc receives a fasthttp handler, its cache expiration and
  // the remote address of the remote cache server(look ListenAndServe)
  // returns a remote-cached handler
  //
  // You CAN NOT add validators with this function