func (v *formatterValue) Set(value string) error {
	if v.formatters[value] == nil {
		return fmt.Errorf("unknown format %q", value)
	}
	v.name = value
	return nil
}
// Set stores the chosen formatter name in v.name.
Set stores the chosen formatter name in v.name.
// Set stores the chosen formatter name in v . name .
func (v *formatterValue) Set(value string) error {
	if v.formatters[value] == nil {
		return fmt.Errorf("unknown format %q", value)
	}
	v.name = value
	return nil
}
func ( v * formatterValue ) Set ( value string ) error { if v . formatters [ value ] == nil { return fmt . Errorf ( " " , value ) } v . name = value return nil }
Set stores the chosen formatter name in v.name.
Set stores the chosen formatter name in v . name .