template/template.go
func AlertTemplateData(labels map[string]string, externalLabels map[string]string, value float64) interface{} {
	return struct {
		Labels         map[string]string
		ExternalLabels map[string]string
		Value          float64
	}{
		Labels:         labels,
		ExternalLabels: externalLabels,
		Value:          value,
	}
}
func AlertTemplateData(labels map[string]string, externalLabels map[string]string, value float64) interface{} {
	return struct {
		Labels         map[string]string
		ExternalLabels map[string]string
		Value          float64
	}{
		Labels:         labels,
		ExternalLabels: externalLabels,
		Value:          value,
	}
}
// AlertTemplateData returns the interface to be used in expanding the template.