Update app.py

app.py

@@ -191,14 +191,10 @@ if prompt := st.chat_input("How can I help you today?"):
     if "audio" not in st.session_state:
         st.session_state.audio = False
 
-    x = st.button('Reference',key='reference')
-    if x or st.session_state.reference:
+    if st.button('Reference') or st.session_state.reference:
         generate_pdf()
         st.session_state.reference = True
-        
-
-    y  = st.button(':speaker:',key='audio')
-    if y or st.session_state.audio:
+    if st.button(':speaker:') or st.session_state.audio:
         generate_audio()
         st.session_state.audio = True