m.Set(apiRequests5xxErrorsTotal, float64(v), "bucket", bucket, "name", k, "type", "s3")
		}
	}

	return nil
}

// loadBucketAPITTFBMetrics - loads bucket S3 TTFB metrics.
//
// This is a `MetricsLoaderFn`.
func loadBucketAPITTFBMetrics(ctx context.Context, m MetricValues, _ *metricsCache, buckets []string) error {
	renameLabels := map[string]string{"api": "name"}

			bucketAPIRequestsCanceledMD,
			bucketAPIRequests4xxErrorsMD,
			bucketAPIRequests5xxErrorsMD,

			bucketAPIRequestsTTFBSecondsDistributionMD,
		},
		JoinBucketLoaders(loadBucketAPIHTTPMetrics, loadBucketAPITTFBMetrics),
	)

	bucketReplicationMG := NewBucketMetricsGroup(bucketReplicationCollectorPath,
		[]MetricDescriptor{
			bucketReplLastHrFailedBytesMD,
			bucketReplLastHrFailedCountMD,