k.updateMetrics(err, time.Since(start))

	return err
}

// ListKeys returns a list of keys with metadata and a potential
// next name from where to continue a subsequent listing.
func (k *KMS) ListKeys(ctx context.Context, req *ListRequest) ([]madmin.KMSKeyInfo, string, error) {
	if req.Prefix == "*" {
		req.Prefix = ""
	}
	return k.conn.ListKeys(ctx, req)
}