code: func (kubemarkController *KubemarkController) GetNodeGroupTargetSize(nodeGroup string) (int, error) {
  	kubemarkController.nodeGroupQueueSizeLock.Lock()
  	defer kubemarkController.nodeGroupQueueSizeLock.Unlock()
  	realSize, err := kubemarkController.GetNodeGroupSize(nodeGroup)
  	if err != nil {
  		return realSize, err
  	}
  	return realSize + kubemarkController.nodeGroupQueueSize[nodeGroup], nil
  }
docs: // GetNodeGroupTargetSize returns the size of the node group as a sum of current
  // observed size and number of upcoming nodes.