Index: node_modules/es-toolkit/dist/array/unionBy.js
===================================================================
--- node_modules/es-toolkit/dist/array/unionBy.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/es-toolkit/dist/array/unionBy.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,11 @@
+'use strict';
+
+Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+
+const uniqBy = require('./uniqBy.js');
+
+function unionBy(arr1, arr2, mapper) {
+    return uniqBy.uniqBy(arr1.concat(arr2), mapper);
+}
+
+exports.unionBy = unionBy;