diff --git a/packages/core/src/_utils.ts b/packages/core/src/_utils.ts
index 43d2605..5330df4 100644
--- a/packages/core/src/_utils.ts
+++ b/packages/core/src/_utils.ts
@@ -1,3 +1,5 @@
+// testing utils
+
 import defaultKy, {
   type AfterResponseHook,
   type BeforeRequestHook,