Update app.py

app.py

@@ -3,6 +3,8 @@ import semantic_kernel
 from plugins.sk_bing_plugin import BingPlugin
 from plugins.sk_web_pages_plugin import WebPagesPlugin
 from planning.autogen_planner import AutoGenPlanner
+from typing_extensions import Protocol, runtime_checkable
+from pydantic import BaseModel
 
 # Configure your credentials here
 bing_api_key = "..."  # Replace with your Bing API key