code: func (o *NamespaceControllerOptions) AddFlags(fs *pflag.FlagSet) {
  	if o == nil {
  		return
  	}
  
  	fs.DurationVar(&o.NamespaceSyncPeriod.Duration, "namespace-sync-period", o.NamespaceSyncPeriod.Duration, "The period for syncing namespace life-cycle updates")
  	fs.Int32Var(&o.ConcurrentNamespaceSyncs, "concurrent-namespace-syncs", o.ConcurrentNamespaceSyncs, "The number of namespace objects that are allowed to sync concurrently. Larger number = more responsive namespace termination, but more CPU (and network) load")
  }
docs: // AddFlags adds flags related to NamespaceController for controller manager to the specified FlagSet.