app.py

import streamlit as st

st.set_page_config(
    page_title="Piping & Instrumentation Diagram (P&ID) Object Detection ",
    page_icon="🚀",
    layout="wide",
    initial_sidebar_state="expanded",
    menu_items={
        'Get Help': 'https://www.extremelycoolapp.com/help',
        'Report a bug': "https://www.extremelycoolapp.com/bug",
        'About': "# This is a header. This is an *extremely* cool app!"
    }
)

x = st.slider('Select a value')
st.write(x, 'squared is', x * x)