initial client roundtrip estimate on broker

broker/metrics.go

@@ -0,0 +1,17 @@
+package snowflake_broker
+
+import (
+	// "golang.org/x/net/internal/timeseries"
+	"time"
+)
+
+// Implements Observable
+type Metrics struct {
+	// snowflakes	timeseries.Float
+	clientRoundtripEstimate time.Duration
+}
+
+func NewMetrics() *Metrics {
+	m := new(Metrics)
+	return m
+}