New feature request

[startupcode001]

I absolutely loved using this fantastic library for creating high-quality charts in Streamlit!

I have one more improvement request, if I may. I'm currently using ECharts as part of an internal dashboard for our daily production reports to monitor machine performance. Everything is working smoothly, except for one feature our users are requesting. They want the ability to generate and download some of the charts as PowerPoint files with the click of a button. I've had prior success saving Seaborn charts in PowerPoint from Streamlit, but I'm facing challenges with the ECharts library. It seems that when I render the charts using st_echarts, there is no returned value.

Is it possible to request the addition of a figure-like object that we can use to further process and save these charts? Thank you so much for your help!