Update app.py

app.py

@@ -1,4 +1,5 @@
-from datetime import datetime, time
+import datetime
+import time
 import streamlit as st
 import numpy as np
 
@@ -37,16 +38,24 @@ with st.sidebar:
 
     appointment = st.slider(
         "Schedule your appointment:",
-        value=(time(11, 30), time(12, 45)))
+        value=(datetime.time(11, 30), datetime.time(12, 45)))
     st.write("You're scheduled for:", appointment)
 
     start_time = st.slider(
         "When do you start?",
-        value=datetime(2020, 1, 1, 9, 30),
+        value=datetime.datetime(2020, 1, 1, 9, 30),
         format="MM/DD/YY - hh:mm")
     st.write("Start time:", start_time)
 
 
+if st.button('Three cheers'):
+    st.toast('Hip!')
+    time.sleep(.5)
+    st.toast('Hip!')
+    time.sleep(.5)
+    st.toast('Hooray!', icon='🎉')
+
+
 if "chat_messages" not in st.session_state:
     st.session_state.chat_messages = []
 
@@ -62,4 +71,5 @@ for message in st.session_state.chat_messages[::-1]:
     else:
         with st.chat_message("Bot"):
             st.write(message["message"])
-            st.line_chart(message["chart"])
+            st.line_chart(message["chart"])
+