Uploading food not food text classifier demo app.py

app.py

@@ -2,7 +2,7 @@
 import torch
 import gradio as gr
 
-from typing import Dict
+from typing import Dict,Union 
 from transformers import pipeline
 
 huggingface_model_path = "Suraj-Yadav/learn_hf_food_not_food_text_classifier-distilbert-base-uncased"