MeshConfigOrFail(test.Failer) *meshconfig.MeshConfig
	// UpdateMeshConfig used by the Istio installation.
	UpdateMeshConfig(resource.Context, func(*meshconfig.MeshConfig) error, cleanup.Strategy) error
	UpdateMeshConfigOrFail(resource.Context, test.Failer, func(*meshconfig.MeshConfig) error, cleanup.Strategy)
	// PatchMeshConfig with the given patch yaml.
	PatchMeshConfig(resource.Context, string) error

		if err := errG.Wait().ErrorOrNil(); err != nil {
			scopes.Framework.Errorf("failed cleaning up cluster-local config: %v", err)
		}
	})
	return errG.Wait().ErrorOrNil()
}

func (mc *meshConfig) UpdateMeshConfigOrFail(ctx resource.Context, t test.Failer, update func(*meshconfig.MeshConfig) error, cleanupStrategy cleanup.Strategy) {
	t.Helper()
	if err := mc.UpdateMeshConfig(ctx, update, cleanupStrategy); err != nil {
		t.Fatal(err)