How to access the render buffer/strings while debugging?

[jmbraben]

While using vscode python debugging (with "jinja": true, in launch config) and stepping through a given template, "how" would I see the rendered output as it is being built?
I've tried stepping into the "root_render_func"...but the debugger doesn't support that for some reason (assuming because of how this really works under hood)
"Seeing" what is being rendered would greatly help development
...is there any chance of a vscode plugin that could present the state of the rendering while debugging?
...any other possibilities?

My current workaround is to write output to variables (which are accessible in the debugger) then dump them...but that is not very template friendly