code: func ListenAndServeTLS(addr, certFile, keyFile string, handler RequestHandler) error {
  	s := &Server{
  		Handler: handler,
  	}
  	return s.ListenAndServeTLS(addr, certFile, keyFile)
  }
docs: // ListenAndServeTLS serves HTTPS requests from the given TCP addr
  // using the given handler.
  //
  // certFile and keyFile are paths to TLS certificate and key files.