detectAndCompute for ORB_create

In the Python code sample at Feature Based Image Alignment using OpenCV (C++/Python) the code does orb = cv2.ORB_create(MAX_FEATURES) and then, later, keypoints1, descriptors1 = orb.detectAndCompute(im1Gray, None).

This implies that detectAndCompute is a method within the ORB class (whose constructor is ORB_create) but OpenCV: cv::ORB Class Reference makes no mention of it.

Maybe it’s inherited from some sort of parent class but idk.

I’m just wondering because, altho using ORB works well, I found a few examples where it didn’t work so well and I was wondering if AKAZE might be better.

Inheritance diagram for cv::ORB:

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