Update agent.py

agent.py

@@ -207,9 +207,7 @@ def build_graph(provider: str = "huggingface"):
     def assistant(state: MessagesState):
         """Assistant node"""
 
-        "messages": [sys_msg] + state["messages"]
-        
-        return {"messages": [llm_with_tools.invoke(state["messages"])]}
+        return {"messages": [llm_with_tools.invoke([sys_msg] + state["messages"])]}
     """
     def retriever(state: MessagesState):
         #Retriever node