[IMP] index: export batched utils function

src/index.ts

@@ -44,7 +44,7 @@ export { Memo } from "./memo";
 export { xml } from "./app/template_set";
 export { useState, reactive, markRaw, toRaw } from "./reactivity";
 export { useEffect, useEnv, useExternalListener, useRef, useChildSubEnv, useSubEnv } from "./hooks";
-export { EventBus, whenReady, loadFile, markup } from "./utils";
+export { batched, EventBus, whenReady, loadFile, markup } from "./utils";
 export {
   onWillStart,
   onMounted,