code: func (a *AuthWithRoles) SetClusterConfig(c services.ClusterConfig) error {
  	if err := a.action(defaults.Namespace, services.KindClusterConfig, services.VerbCreate); err != nil {
  		return trace.Wrap(err)
  	}
  	if err := a.action(defaults.Namespace, services.KindClusterConfig, services.VerbUpdate); err != nil {
  		return trace.Wrap(err)
  	}
  	return a.authServer.SetClusterConfig(c)
  }
docs: // SetClusterConfig sets cluster level configuration.