PythonPlot: zoomed insert as subplot? Can/should mpl_toolkits.axes_grid1 be used?

I'm using PythonPlot, and would like to create zoomed inserts within plots, as demonstrated in [this discussion](https://stackoverflow.com/questions/46990233/filling-box-for-zoomed-plot-with-a-colour-in-mpl-toolkits-axes-grid1-inset-locat)

That uses a possibly deprecated [MPL toolkit](https://matplotlib.org/stable/api/_as_gen/mpl_toolkits.axes_grid1.inset_locator.html).
(The flag at the top of that site suggests it's unstable, but the URL says "stable".)

Is that toolkit the best or only choice with PythonPlot?

How could one install it?

thanks

The issue names no repository files, tests, or entry points. Start by checking PythonPlot's support for matplotlib's mpl_toolkits.axes_grid1.inset_locator and the linked discussion, then determine whether zoomed inserts can be used and what installation or usage guidance would make the feature complete.

Written by the indexing model from the issue text.