}
	cycleState.Write(preFilterStateKey, preFilterState(s))
	return nil, nil
}

// PreFilterExtensions do not exist for this plugin.
func (pl *NodePorts) PreFilterExtensions() framework.PreFilterExtensions {
	return nil
}

func getPreFilterState(cycleState *framework.CycleState) (preFilterState, error) {
	c, err := cycleState.Read(preFilterStateKey)
	if err != nil {
		// preFilterState doesn't exist, likely PreFilter wasn't invoked.