linter issue

exporter/metric/option.go

@@ -31,8 +31,8 @@ var userAgent = fmt.Sprintf("opentelemetry-go %s; google-cloud-metric-exporter %
 // MonitoredResourceDescription is the struct which holds information required to map OTel resource to specific
 // Google Cloud MonitoredResource.
 type MonitoredResourceDescription struct {
-	mrType   string
 	mrLabels map[string]struct{}
+	mrType   string
 }
 
 // Option is function type that is passed to the exporter initialization function.