list

var FuncMap = map[string]interface{}{
	"contains": strings.Contains,
	"duration": func(t1, t2 time.Time) (s string) {
		sec := uint64(t2.Sub(t1).Seconds())
		if sec > 3600 {
			s += fmt.Sprintf("%dh", sec/3600)
			sec = sec % 3600
		}

		if sec > 60 {
			s += fmt.Sprintf("%dm", sec/60)
			sec = sec % 60
		}
		s += fmt.Sprintf("%ds", sec)
		return s
	},
	"join": strings.Join,
}