How do we tell Streamlit to map a Streamlit call to specific frontend code ?
To do that, we run
components.declare_component, which returns a function that calls the frontend web server to retrieve the React custom component and trigger its render on the browser.
In the next part of this tutorial, we will return a slider from an external library. Wrapping pre-existing React components into Streamlit is actually one of the fastest ways to enhance your application.