Update app.py

app.py

@@ -8,6 +8,9 @@ from parlai.core.params import ParlaiParser
 from parlai.core.worlds import DialogPartnerWorld
 from controllable_blender import ControllableBlender
 from huggingface_hub import snapshot_download
+from huggingface_hub import login
+
+login()
 
 snapshot_download(repo_id="shivansarora/ControllableBlender", local_dir="ParlAI/data/models/blender/blender_3B")