func formatAlternative(duration time.Duration) string {
	ns := duration.Nanoseconds()
	hh := ns / (1000 * 1000 * 1000 * 60 * 60)
	mm := ns / (1000 * 1000 * 1000 * 60) % 60
	ss := ns / (1000 * 1000 * 1000) % 60
	ms := ns / (1000 * 1000) % 1000

	return fmt.Sprintf("%02d:%02d:%02d.%03d", hh, mm, ss, ms)
}
// formatAlternative is an alternative implementation of the Format method.
formatAlternative is an alternative implementation of the Format method.
// formatAlternative is an alternative implementation of the Format method .
func formatAlternative(duration time.Duration) string {
	ns := duration.Nanoseconds()
	hh := ns / (1000 * 1000 * 1000 * 60 * 60)
	mm := ns / (1000 * 1000 * 1000 * 60) % 60
	ss := ns / (1000 * 1000 * 1000) % 60
	ms := ns / (1000 * 1000) % 1000
	return fmt.Sprintf("%02d:%02d:%02d.%03d", hh, mm, ss, ms)
}
func formatAlternative ( duration time . Duration ) string { ns := duration . Nanoseconds ( ) hh := ns / ( 1000 * 1000 * 1000 * 60 * 60 ) mm := ns / ( 1000 * 1000 * 1000 * 60 ) % 60 ss := ns / ( 1000 * 1000 * 1000 ) % 60 ms := ns / ( 1000 * 1000 ) % 1000 return fmt . Sprintf ( " " , hh , mm , ss , ms ) }
formatAlternative is an alternative implementation of the Format method.
formatAlternative is an alternative implementation of the Format method .