Index: node_modules/es-toolkit/dist/predicate/isUndefined.d.ts
===================================================================
--- node_modules/es-toolkit/dist/predicate/isUndefined.d.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/es-toolkit/dist/predicate/isUndefined.d.ts	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,23 @@
+/**
+ * Checks if the given value is undefined.
+ *
+ * This function tests whether the provided value is strictly equal to `undefined`.
+ * It returns `true` if the value is `undefined`, and `false` otherwise.
+ *
+ * This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to `undefined`.
+ *
+ * @param {unknown} x - The value to test if it is undefined.
+ * @returns {x is undefined} true if the value is undefined, false otherwise.
+ *
+ * @example
+ * const value1 = undefined;
+ * const value2 = null;
+ * const value3 = 42;
+ *
+ * console.log(isUndefined(value1)); // true
+ * console.log(isUndefined(value2)); // false
+ * console.log(isUndefined(value3)); // false
+ */
+declare function isUndefined(x: any): x is undefined;
+
+export { isUndefined };