Update app.py

app.py

@@ -1,4 +1,12 @@
 import streamlit as st
 
 x = st.slider('Select a value')
-st.write(x, 'squared is', x * x)
+st.write(x, 'squared is', x * x)
+
+import getpass
+import os
+
+os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY
+
+os.environ["LANGCHAIN_TRACING_V2"] = "true"
+os.environ["LANGCHAIN_API_KEY"] = OPENAI_API_KEY