httpcache.go
func CacheRemoteFasthttpFunc(bodyHandler fasthttp.RequestHandler, expiration time.Duration, remoteServerAddr string) fasthttp.RequestHandler {
	return CacheRemoteFasthttp(bodyHandler, expiration, remoteServerAddr).ServeHTTP
}
func CacheRemoteFasthttpFunc(bodyHandler fasthttp.RequestHandler, expiration time.Duration, remoteServerAddr string) fasthttp.RequestHandler {
	return CacheRemoteFasthttp(bodyHandler, expiration, remoteServerAddr).ServeHTTP
}
// 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