code: func (idr *InitDryRunGetter) handleSystemNodesClusterRoleBinding(action core.GetAction) (bool, runtime.Object, error) {
  	if action.GetName() != constants.NodesClusterRoleBinding || action.GetResource().Resource != "clusterrolebindings" {
  		// We can't handle this event
  		return false, nil, nil
  	}
  	// We can safely return a NotFound error here as the code will just proceed normally and don't care about modifying this clusterrolebinding
  	// This can only happen on an upgrade; and in that case the ClientBackedDryRunGetter impl will be used
  	return true, nil, apierrors.NewNotFound(action.GetResource().GroupResource(), "clusterrolebinding not found")
  }
docs: // handleSystemNodesClusterRoleBinding handles the GET call to the system:nodes clusterrolebinding