changes made to app.py

app.py

@@ -1,6 +1,6 @@
 import json
 import gradio as gr
-from transformers import AutoTokenizer, AutoModelForSeq2SeqLM, AutoModelForCausalLM
+from transformers import AutoTokenizer, AutoModelForSeq2SeqLM
 import torch
 import os
 import sys
@@ -10,7 +10,7 @@ import sys
 # Device and Model Setup
 # ===============================
 device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
-hf_token = os.environ["HF_TOKEN"]
+hf_token = os.environ["HF_TOKEN", None]
 
 #Load the model
 model_path = "AI-Mock-Interviewer/T5"