update

app.py

@@ -1,5 +1,21 @@
+from langchain_openai import ChatOpenAI
+from langchain_core.messages import HumanMessage, SystemMessage
+
 import streamlit as st
 
 st.set_page_config(layout="wide", page_title="LegisQA")
 
 st.write("hello")
+llm = ChatOpenAI(
+    openai_api_key=st.secrets["openai_api_key"]
+)
+
+messages = [
+    SystemMessage(
+        content="You are a helpful assistant that translates English to French."
+    ),
+    HumanMessage(
+        content="Translate this sentence from English to French. I love programming."
+    ),
+]
+st.write(llm.invoke(messages))