code: func (daemon *Daemon) containerUnpause(container *container.Container) error {
  	container.Lock()
  	defer container.Unlock()
  
  	// We cannot unpause the container which is not paused
  	if !container.Paused {
  		return fmt.Errorf("Container %s is not paused", container.ID)
  	}
  
  	if err := daemon.containerd.Resume(context.Background(), container.ID); err != nil {
  		return fmt.Errorf("Cannot unpause container %s: %s", container.ID, err)
  	}
  
  	container.Paused = false
  	daemon.setStateCounter(container)
  	daemon.updateHealthMonitor(container)
  	daemon.LogContainerEvent(container, "unpause")
  
  	if err := container.CheckpointTo(daemon.containersReplica); err != nil {
  		logrus.WithError(err).Warn("could not save container to disk")
  	}
  
  	return nil
  }
docs: // containerUnpause resumes the container execution after the container is paused.