Thank you for your post. To me it is inacceptable that there is no core functionality for using custom  Datasets as intuatively as in the python version. One more reason for me to go back to Tensorflow. I mean…they want to have lots of users for this framework and build it like ‘We don dont care about any documentation for the c++ version. So please be a pro when you want more than python. And pleas don’t ask the forum because we won’t anwer you’.
Thank you for your help