From a1fb498fecb9fda67fff6d9beaeba2f7ccecc66c Mon Sep 17 00:00:00 2001
From: Ubuntu <ubuntu@ip-172-31-83-41.ec2.internal>
Date: Wed, 8 Jul 2026 03:41:51 +0300
Subject: [PATCH] add validation utility

---
 cache_add_validator_check.ts | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 cache_add_validator_check.ts

diff --git a/cache_add_validator_check.ts b/cache_add_validator_check.ts
new file mode 100644
index 000000000..9d512e6e5
--- /dev/null
+++ b/cache_add_validator_check.ts
@@ -0,0 +1,6 @@
+export function cache_add_validator_check_dfcf(input: unknown): unknown {
+  if (input === null || input === undefined) {
+    return undefined;
+  }
+  return input;
+}