Update app.py

app.py

@@ -4,6 +4,7 @@ from tensorflow import keras
 import keras_nlp
 import PyPDF2
 import docx2txt
+import huggingface_hub
 
 hf_username = huggingface_hub.whoami()['name']
 hf_url = f'hf://{hf_username}/bart_billsum'