Update app.py

app.py

@@ -29,9 +29,7 @@ async def check_n_load_attach(session: aiohttp.ClientSession, task_id
 : str, api_url: str = DEFAULT_API_URL) -> Optional[str]:
     file_url = f"{api_url}/files/{task_id}"
     try:
-
-        async with session.get
-(file_url, timeout=15) as response:
+        async with session.get(file_url, timeout=15) as response:
             if response.status == 200:
                 # Get filename from Content-Disposition
                 filename = None