Add metric type to metric struct.

internal/models/metric.go

@@ -8,15 +8,18 @@ type Metric struct {
 	Description string
 	// Additional parameters, data inside "{}".
 	Params []string
+	// Type is a metric type.
+	Type string
 	// Metric value.
 	Value string
 }
 
 // NewMetric creates new structure for storing single metric data.
-func NewMetric(name, description string, params []string) Metric {
+func NewMetric(name, mType, description string, params []string) Metric {
 	m := Metric{
 		Name:        name,
 		Description: description,
+		Type:        mType,
 		Params:      params,
 	}