code: public static GrpcServerBuilder forAddress(String hostName, SocketAddress address,
        AuthenticationServer authenticationServer, AlluxioConfiguration conf) {
      return new GrpcServerBuilder(hostName, address, authenticationServer, conf);
    }
docs: Create an new instance of {@link GrpcServerBuilder} with authentication support.
  
  @param hostName the host name
  @param address the address
  @param authenticationServer the authentication server to use
  @param conf the Alluxio configuration
  @return a new instance of {@link GrpcServerBuilder}