propogate kwargs fully (#6076)

langchain/chat_models/base.py

@@ -190,9 +190,10 @@ class BaseChatModel(BaseLanguageModel, ABC):
         messages: List[BaseMessage],
         stop: Optional[List[str]] = None,
         callbacks: Callbacks = None,
+        **kwargs: Any,
     ) -> BaseMessage:
         generation = self.generate(
-            [messages], stop=stop, callbacks=callbacks
+            [messages], stop=stop, callbacks=callbacks, **kwargs
         ).generations[0][0]
         if isinstance(generation, ChatGeneration):
             return generation.message
@@ -227,7 +228,7 @@ class BaseChatModel(BaseLanguageModel, ABC):
             _stop = None
         else:
             _stop = list(stop)
-        result = self([HumanMessage(content=text)], stop=_stop)
+        result = self([HumanMessage(content=text)], stop=_stop, **kwargs)
         return result.content
 
     def predict_messages(