Index: node_modules/es-toolkit/dist/math/meanBy.js
===================================================================
--- node_modules/es-toolkit/dist/math/meanBy.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/es-toolkit/dist/math/meanBy.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,11 @@
+'use strict';
+
+Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+
+const sumBy = require('./sumBy.js');
+
+function meanBy(items, getValue) {
+    return sumBy.sumBy(items, item => getValue(item)) / items.length;
+}
+
+exports.meanBy = meanBy;