code: func getStorage() (uint64, uint16, []byte) {
  	storageOnce.Do(initStorage)
  
  	storageMutex.Lock()
  	defer storageMutex.Unlock()
  
  	timeNow := epochFunc()
  	// Clock changed backwards since last UUID generation.
  	// Should increase clock sequence.
  	if timeNow <= lastTime {
  		clockSequence++
  	}
  	lastTime = timeNow
  
  	return timeNow, clockSequence, hardwareAddr[:]
  }
docs: // Returns UUID v1/v2 storage state.
  // Returns epoch timestamp, clock sequence, and hardware address.