type pluginIndex struct {
	index  int
	plugin v1.Plugin
}

func mergePluginSet(logger klog.Logger, defaultPluginSet, customPluginSet v1.PluginSet) v1.PluginSet {
	disabledPlugins := sets.New[string]()
	enabledCustomPlugins := make(map[string]pluginIndex)
	// replacedPluginIndex is a set of index of plugins, which have replaced the default plugins.
	replacedPluginIndex := sets.New[int]()
	var disabled []v1.Plugin