diff --git a/staging/src/k8s.io/component-base/metrics/testutil/metrics.go b/staging/src/k8s.io/component-base/metrics/testutil/metrics.go
index 05d15b08d75..e1ed9243809 100644
--- a/staging/src/k8s.io/component-base/metrics/testutil/metrics.go
+++ b/staging/src/k8s.io/component-base/metrics/testutil/metrics.go
@@ -38,8 +38,20 @@ var (
 	QuantileLabel model.LabelName = model.QuantileLabel
 )
 
-// Metrics is generic metrics for other specific metrics
-type Metrics map[string]model.Samples
+// Metrics is generic metrics for other specific metrics.
+// This directly exposes Prometheus types. Test code may
+// use those via type aliases provided by this package
+// instead of imorting the Prometheus packages (https://github.com/kubernetes/kubernetes/issues/89267).
+type Metrics map[string]Samples
+type Samples = model.Samples
+type Sample = model.Sample
+type Metric = model.Metric
+type LabelValue = model.LabelValue
+type LabelName = model.LabelName
+type SampleHistogram = model.SampleHistogram
+type FloatString = model.FloatString
+type HistogramBuckets = model.HistogramBuckets
+type HistogramBucket = model.HistogramBucket
 
 // Equal returns true if all metrics are the same as the arguments.
 func (m *Metrics) Equal(o Metrics) bool {