/C/TypeError: Incorrect type of self (must be 'Feature2D' or its derivative)

TypeError: Incorrect type of self (must be 'Feature2D' or its derivative)

# there is a bug (in the wrappers) here, the correct invocation has to be:
detector = cv.SimpleBlobDetector_create()
# (same problem with ORB,AKAZE, anything from features2d)

Source: answers.opencv.org

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