code: func GetCSINameFromInTreeName(pluginName string) (string, error) {
  	for csiDriverName, curPlugin := range inTreePlugins {
  		if curPlugin.GetInTreePluginName() == pluginName {
  			return csiDriverName, nil
  		}
  	}
  	return "", fmt.Errorf("could not find CSI Driver name for plugin %v", pluginName)
  }
docs: // GetCSINameFromInTreeName returns the name of a CSI driver that supersedes the
  // in-tree plugin with the given name