Update app.py

app.py

@@ -108,7 +108,7 @@ def handle_query(openai_key, query, query_length):
     )
 
     # Use the ChatCompletion API instead of Completion
-    response = openai.ChatCompletion.create(
+    response = openai.chat.Completion.create(
         model="gpt-4",
         messages=[
             {"role": "system", "content": "You are a helpful assistant that answers questions about Indian law."},