Problem

Most methods to create anAxes instance (e.g.Figure.add_axes,pyplot.subplot) allow passing of theprojection keyword in order to return an instance of a subclass ofAxes. It would be useful ifAxes.inset_axes could do the same.

See also#22608 where there was some agreement that this would be useful, but that was not the right solution.

Proposed solution

I'm unfamilar with the Matplotlib codebase, but Ithink the relevant functionality is contained withinFigure._process_projection_requirements. So perhapsinset_axes could reuse that somehow.