Co-authored-by: Hui Wen <45724323+huiwengoh@users.noreply.github.com>
* Add out-of-sample clarification to notebook, fix filename check, add unit tests
Co-authored-by: Aditya Thyagarajan <aditya1593@icloud.com> Co-authored-by: Jonas Mueller <1390638+jwmueller@users.noreply.github.com> Co-authored-by: Hui Wen <45724323+huiwengoh@users.noreply.github.com>