Update app.py

app.py

@@ -1,5 +1,20 @@
 import streamlit as st
 
+from langchain.llms import OpenAI
+
+def get_answer_from_open_ai(question: str)-> str:
+    llm = OpenAI(model_name='text-davinci-003', temperature=0)
+    return llm(question)
+
 #App UI starts here
 st.set_page_config(page_title="QnA app with LangChain and OpenAI", page_icon=":robot:")
-st.header("Question and Answering App")
+st.header("Question and Answering App")
+
+
+question = st.text_input('You: ', key='input')
+response = get_answer_from_open_ai(question)
+
+submit = st.button('Get the Answer')
+
+if sumbit:
+    st.write(response)