From 7ad9845966a473bda0015f3f2f7a488d17cd24b4 Mon Sep 17 00:00:00 2001
From: Tyler Yahn <codingalias@gmail.com>
Date: Tue, 10 Jan 2023 16:22:16 -0800
Subject: [PATCH] Fix metric API example_test

---
 metric/example_test.go | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/metric/example_test.go b/metric/example_test.go
index 94a264609bf1..bfa8592b7144 100644
--- a/metric/example_test.go
+++ b/metric/example_test.go
@@ -85,22 +85,21 @@ func ExampleMeter_asynchronous_multiple() {
 	gcCount, _ := meter.Int64ObservableCounter("gcCount")
 	gcPause, _ := meter.Float64Histogram("gcPause")
 
-	_, err := meter.RegisterCallback([]instrument.Asynchronous{
-		heapAlloc,
-		gcCount,
-	},
-		func(ctx context.Context) error {
+	_, err := meter.RegisterCallback(
+		func(ctx context.Context, o metric.ObservationRecorder) error {
 			memStats := &runtime.MemStats{}
 			// This call does work
 			runtime.ReadMemStats(memStats)
 
-			heapAlloc.Observe(ctx, int64(memStats.HeapAlloc))
-			gcCount.Observe(ctx, int64(memStats.NumGC))
+			o.Int64(heapAlloc, int64(memStats.HeapAlloc))
+			o.Int64(gcCount, int64(memStats.NumGC))
 
 			// This function synchronously records the pauses
 			computeGCPauses(ctx, gcPause, memStats.PauseNs[:])
 			return nil
 		},
+		heapAlloc,
+		gcCount,
 	)
 
 	if err != nil {