util/stats/timer.go
func (t *TimerGroup) String() string {
	timers := byCreationTimeSorter{}
	for _, timer := range t.timers {
		timers.Timers = append(timers.Timers, timer)
	}
	sort.Sort(timers)
	result := &bytes.Buffer{}
	for _, timer := range timers.Timers {
		fmt.Fprintf(result, "%s\n", timer)
	}
	return result.String()
}
func (t *TimerGroup) String() string {
	timers := byCreationTimeSorter{}
	for _, timer := range t.timers {
		timers.Timers = append(timers.Timers, timer)
	}
	sort.Sort(timers)
	result := &bytes.Buffer{}
	for _, timer := range timers.Timers {
		fmt.Fprintf(result, "%s\n", timer)
	}
	return result.String()
}
// Return a string representation of a TimerGroup.