Update model.py

model.py

@@ -115,7 +115,7 @@ def build_graph(provider: str = "groq"):
     llm_with_tools = llm.bind_tools(tools)
 
     def assistant(state: MessagesState):
-        return {"messages": [llm_with_tools.invoke(state["messages"\])]}
+        return {"messages": [llm_with_tools.invoke(state["messages"])]}
 
     def retriever(state: MessagesState):
         docs = vector_store.similarity_search(state["messages"][0].content)