Update app.py

app.py

@@ -148,12 +148,13 @@ class AgentState(TypedDict):
     messages: Annotated[list[AnyMessage], add_messages]
 
 
-def assistant(state: AgentState):
+
+
+def build_agent(chat):
+    def assistant(state: AgentState):
     return {
         "messages": chat.invoke(state["messages"]),
     }
-
-def build_agent(chat):
     tools = [get_file_path_tool, get_content_tool, search_web_tool, extract_text_tool, play_chess_tool, run_code_tool]
     chat_with_tools = chat.bind_tools(tools, parallel_tool_calls=False)
     # The graph