updated API key reference

llama_guard.py

@@ -2,7 +2,6 @@ from transformers import AutoTokenizer, AutoModelForCausalLM
 import torch
 
 # Docs:- https://huggingface.co/meta-llama/LlamaGuard-7b
-from dotenv import load_dotenv, find_dotenv
 import os
 import requests
 
@@ -10,8 +9,7 @@ model_id = "meta-llama/LlamaGuard-7b"
 
 
 # Please ensure you have a .env file available with 'HUGGINGFACEHUB_API_TOKEN'
-load_dotenv(find_dotenv())
-HUGGINGFACEHUB_API_TOKEN = os.environ["HUGGINGFACEHUB_API_TOKEN"]
+HUGGINGFACEHUB_API_TOKEN = os.getenv("HUGGINGFACE_LLAMAGAURD_API_TOKEN")
 
 # updated on March 24th