code: func GetFlagInt64(cmd *cobra.Command, flag string) int64 {
  	i, err := cmd.Flags().GetInt64(flag)
  	if err != nil {
  		klog.Fatalf("error accessing flag %s for command %s: %v", flag, cmd.Name(), err)
  	}
  	return i
  }
docs: // Assumes the flag has a default value.