Problem

Just coded a demo app and I wanted to show the code for an example with st.echo. But it looked too big. Ideally, I would have loved to put it in an expander but that's not easily possible with st.echo.

Solution

Introduce a parameter expander=False|True|str on st.echo. If True, it shows the code in an expander with the label "Show code". If str, it shows an expander using that string as the label.

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