Index: node_modules/es-toolkit/dist/array/groupBy.js
===================================================================
--- node_modules/es-toolkit/dist/array/groupBy.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/es-toolkit/dist/array/groupBy.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,18 @@
+'use strict';
+
+Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+
+function groupBy(arr, getKeyFromItem) {
+    const result = {};
+    for (let i = 0; i < arr.length; i++) {
+        const item = arr[i];
+        const key = getKeyFromItem(item, i, arr);
+        if (!Object.hasOwn(result, key)) {
+            result[key] = [];
+        }
+        result[key].push(item);
+    }
+    return result;
+}
+
+exports.groupBy = groupBy;