code: func sumImageScores(nodeInfo *schedulernodeinfo.NodeInfo, containers []v1.Container, totalNumNodes int) int64 {
  	var sum int64
  	imageStates := nodeInfo.ImageStates()
  
  	for _, container := range containers {
  		if state, ok := imageStates[normalizedImageName(container.Image)]; ok {
  			sum += scaledImageScore(state, totalNumNodes)
  		}
  	}
  
  	return sum
  }
docs: // sumImageScores returns the sum of image scores of all the containers that are already on the node.
  // Each image receives a raw score of its size, scaled by scaledImageScore. The raw scores are later used to calculate
  // the final score. Note that the init containers are not considered for it's rare for users to deploy huge init containers.