From 1a0e418a10a532a2badd4834695f9e5fb998d1cd Mon Sep 17 00:00:00 2001
From: Eric Lam <voidful.stack@gmail.com>
Date: Sun, 29 Jun 2025 22:21:24 +0800
Subject: [PATCH] Fix missing return in tok_begin

---
 tfkit/utility/tok.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tfkit/utility/tok.py b/tfkit/utility/tok.py
index 70fb0f2..4f0fc79 100644
--- a/tfkit/utility/tok.py
+++ b/tfkit/utility/tok.py
@@ -11,7 +11,7 @@ def tok_begin(tokenizer):
     if tokenizer.special_tokens_map.get('bos_token') is not None:
         return tokenizer.special_tokens_map.get('bos_token')
     elif tokenizer.special_tokens_map.get('cls_token') is not None:
-        tokenizer.special_tokens_map.get('cls_token')
+        return tokenizer.special_tokens_map.get('cls_token')
     return 'cls'