Update app.py

app.py

@@ -1,8 +1,13 @@
 import streamlit as st
 import os 
+import sys
 from langchain_google_genai import ChatGoogleGenerativeAI
 google_api_key = st.sidebar.text_input("Provide Your Google Gemini API Key")
 
+if not google_api_key:
+    st.write("Please Provide Your API then Try Again")
+    sys.exit(0)
+    
 def llm_response(question):
     llm = ChatGoogleGenerativeAI(model="gemini-pro", temperature=0.5, google_api_key=google_api_key)
     response = llm.invoke(question)