nl_tokens: TODO : Batching should be implemented at the renderer level not within the reconciler .
pl_tokens: function flushSync ( fn ) { var previousIsBatchingUpdates = isBatchingUpdates ; isBatchingUpdates = true ; <mask> { return syncUpdates ( fn ) ; } finally { isBatchingUpdates = previousIsBatchingUpdates ; ! ! isRendering ? invariant ( false , 'flushSync was called from inside a lifecycle method. It cannot be called when React is already rendering.' ) : void 0 ; performWork ( Sync , null ) ; } }