if isMCP {
		// Special credentials handling when using ASM Managed Control Plane.
		mem, err := getHubMembership(ctx, kubeClient)
		if err != nil {
			return nil, fmt.Errorf("failed to query Hub membership: %w", err)
		}
		aud = []string{mem.WorkloadIdentityPool}
	}
	k8sCreds, err := kubeClient.CreatePerRPCCredentials(ctx, ns, serviceAccount, aud, defaultExpirationSeconds)
	if err != nil {