[Chore] Separate out vllm.utils.func (#26904)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

tests/models/multimodal/generation/test_common.py

@@ -17,7 +17,7 @@ from transformers import (
 )
 
 from vllm.platforms import current_platform
-from vllm.utils import identity
+from vllm.utils.func import identity
 
 from ....conftest import (
     IMAGE_ASSETS,