fix: hopefully this will get the right username

app.py

@@ -247,7 +247,8 @@ def vote(data: gr.LikeData):
 
 def create_greeting(request: gr.Request):
     global USERNAME
-    USERNAME = request.username
+    print(dir(request))
+    USERNAME = request.request.session.get('user')
     return gr.Markdown.update(value=f"Thanks for logging in, {request.username}")
 
 with gr.Blocks(css=CSS) as demo: