Class bgsegm question

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Hi everybody,

I am only able to call the following methods with Python 3.5 + OpenCv 3.1.0
class cv::bgsegm::BackgroundSubtractorGMG class cv::bgsegm::BackgroundSubtractorMOG via cv2.bgsegm.BackgroundSubtractorGMG() or cv2.bgsegm.BackgroundSubtractorMOG().

What about the following? class cv::bgsegm::BackgroundSubtractorCNT class cv::bgsegm::BackgroundSubtractorGSOC class cv::bgsegm::BackgroundSubtractorLSBP class cv::bgsegm::BackgroundSubtractorLSBPDesc class cv::bgsegm::SyntheticSequenceGenerator Are there additional modules to load or those functions are only available for c++ environment?

Thanks for your help, Michele