Upload app.py

app.py

@@ -0,0 +1,12 @@
+import streamlit as st
+
+def backend_function(data):
+    result = data * 2  
+    return result
+
+st.title('Streamlit App with Backend')
+
+user_input = st.number_input('Enter a number')
+if st.button('Submit'):
+    result = backend_function(user_input)
+    st.write(f'Result from backend: {result}')