Update llama_chat_bot.py

llama_chat_bot.py

@@ -20,7 +20,7 @@ print(hf_token)
 from transformers import AutoTokenizer
 
 model = "meta-llama/Llama-2-7b-chat-hf"
-tokenizer = await AutoTokenizer.from_pretrained(model, token=hf_token)
+tokenizer = AutoTokenizer.from_pretrained(model, token=os.environ['HF_TOKEN'])
 
 # pip3 install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/cpu