Update app.py

app.py

@@ -12,6 +12,10 @@ from pdf2image import convert_from_path
 import google.generativeai as genai
 import json
 
+def authenticate(username, password):
+    return (username == os.environ.get("HF_USERNAME") and 
+            password == os.environ.get("HF_PASSWORD"))
+
 # Helper Functions
 def convert_to_rgb(image_path):
     img = Image.open(image_path)