[Bugfix] Fix incompatibility between #33372 and #32863 (#33475)

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

vllm/renderers/deepseek_v32.py

@@ -71,7 +71,6 @@ class DeepseekV32Renderer(RendererLike):
             content_format="string",
         )
 
-        kwargs["return_dict"] = False
         prompt_raw = tokenizer.apply_chat_template(
             conversation=conversation,
             messages=messages,
@@ -98,7 +97,6 @@ class DeepseekV32Renderer(RendererLike):
             content_format="string",
         )
 
-        kwargs["return_dict"] = False
         prompt_raw = tokenizer.apply_chat_template(
             conversation=conversation,
             messages=messages,

vllm/renderers/grok2.py

@@ -71,7 +71,6 @@ class Grok2Renderer(RendererLike):
             content_format="string",
         )
 
-        kwargs["return_dict"] = False
         prompt_raw = tokenizer.apply_chat_template(
             conversation=conversation,
             messages=messages,
@@ -98,7 +97,6 @@ class Grok2Renderer(RendererLike):
             content_format="string",
         )
 
-        kwargs["return_dict"] = False
         prompt_raw = tokenizer.apply_chat_template(
             conversation=conversation,
             messages=messages,

vllm/renderers/hf.py

@@ -466,7 +466,6 @@ def safe_apply_chat_template(
         chat_template=chat_template,
         chat_template_kwargs=kwargs,
     )
-    resolved_kwargs["return_dict"] = False
 
     try:
         return tokenizer.apply_chat_template(

vllm/renderers/params.py

@@ -66,7 +66,7 @@ class ChatParams:
         """The arguments to pass to `tokenizer.apply_chat_template`."""
         return merge_kwargs(
             self.chat_template_kwargs,
-            dict(chat_template=self.chat_template),
+            dict(chat_template=self.chat_template, return_dict=False),
         )