trying to fix csv output

app.py

@@ -82,6 +82,14 @@ def generate_caption(processor, model, image):
     logging.info('Finished generate_caption')
     return generated_caption
 
+
+# Function to save dataframe results to a CSV file for download
+def save_dataframe_to_csv(df):
+    csv_buffer = io.StringIO()
+    df.to_csv(csv_buffer, index=False)
+    csv_string = csv_buffer.getvalue()
+    return csv_string.encode('utf-8')  # Return the CSV contents as bytes
+
 # Main function to perform image captioning and image-text matching
 def process_images_and_statements(image):
     logging.info('Starting process_images_and_statements')