Update app.py

app.py

@@ -1,5 +1,7 @@
 import gradio as gr
 from transformers import pipeline
+from helper import load_image_from_url, render_results_in_image
+from helper import summarize_predictions_natural_language
 
 od_pipe = pipeline("object-detection", model="facebook/detr-resnet-50")
 tts_pipe = pipeline("text-to-speech",