Update rag_engine.py

rag_engine.py

@@ -92,7 +92,7 @@ def load_model():
         return None, None
 
 @st.cache_data(ttl=3600)
-def download_file_from_gcs(bucket, gcs_path, local_path):
+def download_file_from_gcs(_bucket, gcs_path, local_path):
     """Download a file from GCS to local storage."""
     try:
         # Check if file already exists
@@ -100,7 +100,7 @@ def download_file_from_gcs(bucket, gcs_path, local_path):
             print(f"File already exists locally: {local_path}")
             return True
             
-        blob = bucket.blob(gcs_path)
+        blob = _bucket.blob(gcs_path)
         blob.download_to_filename(local_path)
         print(f"✅ Downloaded {gcs_path} → {local_path}")
         return True