Update app.py

corrected class type hint in get_file

app.py

@@ -9,7 +9,7 @@ from google import genai
 from google.genai import types
 import asyncio
 import requests
-from typing import IO
+from typing import IO, type
 
 # (Keep Constants as is)
 # --- Constants ---
@@ -57,7 +57,7 @@ class BasicAgent:
         # return answer.text
 
     @tool
-    def get_file(self: BasicAgent, task_id: str) -> IO:
+    def get_file(self: type[BasicAgent], task_id: str) -> IO:
         '''
         Downloads the file associated with the given task_id, if one exists and is mapped.
         If the question mentions an attachment, use this function.