Update app.py

app.py

@@ -105,7 +105,7 @@ def supabase_fetch_user(user_name):
 def get_completion(message,history,profile: gr.OAuthProfile | None,oauth_token: gr.OAuthToken | None,request: gr.Request):
     if request:
         ip = request.client.host
-        sign = dict(request.query_params).get['__sign']
+        sign = dict(request.query_params).get('__sign')
     
     # check login
     if profile is None: