Update app.py

app.py

@@ -379,7 +379,7 @@ def chat_with_model(prompt, document_section, model_choice='gpt-3.5-turbo'):
     report = []
     res_box = st.empty()
     collected_chunks = []
-    collected_messages = 
+    collected_messages = []
     st.write('Running prompt with ' + model)
     for chunk in openai.ChatCompletion.create(model='gpt-3.5-turbo', messages=conversation, temperature=0.5, stream=True):
         collected_chunks.append(chunk)