Index: node_modules/es-toolkit/dist/object/toSnakeCaseKeys.mjs
===================================================================
--- node_modules/es-toolkit/dist/object/toSnakeCaseKeys.mjs	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/es-toolkit/dist/object/toSnakeCaseKeys.mjs	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,23 @@
+import { isArray } from '../compat/predicate/isArray.mjs';
+import { isPlainObject } from '../compat/predicate/isPlainObject.mjs';
+import { snakeCase } from '../string/snakeCase.mjs';
+
+function toSnakeCaseKeys(obj) {
+    if (isArray(obj)) {
+        return obj.map(item => toSnakeCaseKeys(item));
+    }
+    if (isPlainObject(obj)) {
+        const result = {};
+        const keys = Object.keys(obj);
+        for (let i = 0; i < keys.length; i++) {
+            const key = keys[i];
+            const snakeKey = snakeCase(key);
+            const convertedValue = toSnakeCaseKeys(obj[key]);
+            result[snakeKey] = convertedValue;
+        }
+        return result;
+    }
+    return obj;
+}
+
+export { toSnakeCaseKeys };