code: def _AddForwardedIps(self, forwarded_ips, interface):
      
      for address in forwarded_ips:
        self.ip_forwarding_utils.AddForwardedIp(address, interface)
docs: Configure the forwarded IP address on the network interface.
  
      Args:
        forwarded_ips: list, the forwarded IP address strings to configure.
        interface: string, the output device to use.