How to add d3 to the panel?

[PhilippDehner]

Hi,
I want to use d3 in my panel. Does anybody know how to add it?

I tested just adding the following in HTMLPanel.tsx (and yarn add @types/d3)

// @ts-ignore
import * as d3 from 'd3';

Unfortunately it didn't work...

Thanks!

[PhilippDehner]

Duplicated by #142?