code: func GetAdmissionPluginConfigurationFor(pluginCfg apiserver.AdmissionPluginConfiguration) (io.Reader, error) {
  	// if there is a nest object, return it directly
  	if pluginCfg.Configuration != nil {
  		return bytes.NewBuffer(pluginCfg.Configuration.Raw), nil
  	}
  	// there is nothing nested, so we delegate to path
  	if pluginCfg.Path != "" {
  		content, err := ioutil.ReadFile(pluginCfg.Path)
  		if err != nil {
  			klog.Fatalf("Couldn't open admission plugin configuration %s: %#v", pluginCfg.Path, err)
  			return nil, err
  		}
  		return bytes.NewBuffer(content), nil
  	}
  	// there is no special config at all
  	return nil, nil
  }
docs: // GetAdmissionPluginConfigurationFor returns a reader that holds the admission plugin configuration.