How to use `nbdev.export.nb_export` on Google Colab

Is it possible to use nbdev.export in colab? I’m unable to use nbdev export:

nbdev.export.nb_export('app.ipynb', '.')

Getting following error:

JSONDecodeError: Expecting value: line 1 column 1

Oops, ignore this topic. The first argument should be the name of the notebook from which we need to export!