code: func SetNodeInterface(name string) bool {
  	defer nodeMu.Unlock()
  	nodeMu.Lock()
  	return setNodeInterface(name)
  }
docs: // SetNodeInterface selects the hardware address to be used for Version 1 UUIDs.
  // If name is "" then the first usable interface found will be used or a random
  // Node ID will be generated.  If a named interface cannot be found then false
  // is returned.
  //
  // SetNodeInterface never fails when name is "".