Update app.py

app.py

@@ -19,7 +19,7 @@ access_token = os.environ["HF_TOKEN"]
 finnhub_client = finnhub.Client(api_key=os.environ["FINNHUB_API_KEY"])
 
 base_model = AutoModelForCausalLM.from_pretrained(
-    'meta-llama/Llama-2-7b',
+    'meta-llama/Llama-2-7b-chat-hf',
     token=access_token,
     trust_remote_code=True, 
     device_map="auto",
@@ -34,7 +34,7 @@ model = PeftModel.from_pretrained(
 model = model.eval()
 
 tokenizer = AutoTokenizer.from_pretrained(
-    'meta-llama/Llama-2-7b',
+    'meta-llama/Llama-2-7b-chat-hf',
     token=access_token
 )