I  was following the instructions here 5 to create a custom c++ class and use it in Python with TouchScript. But I’m having trouble loading the library. Here’s my code and the stacktrace:
>>> import torch
>>> torch.classes.load_library('Array.cp37-win_amd64.pyd')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'torch.classes' has no attribute 'load_library'

The custom operator tutorial 9 worked fine for me: I can load the script properly. Does anyone know the reason behind this error or how to solve it?
Thanks.