AttributeError: module 'pybgs' has no attribute 'DPAdaptiveMedian'

Hi there, I need some help.

When I tried to run the **demo2.py**, it reported an **AttributeError: module 'pybgs' has no attribute 'DPAdaptiveMedian'**, then I annotated that line and ran again, same error happened but for the following line: **AttributeError: module 'pybgs' has no attribute 'DPGrimsonGMM'**


However, if I removed the whole **if is_cv2() or is_cv3()** section, the program could be executed successfully



PC config.: Windows 10, Anaconda environment, Pycharm 2019.2.1, Visual studio 16 2019, OpenCV 3.4.2

I followed the https://github.com/andrewssobral/bgslibrary/wiki/Wrapper:-Python to install the **pybgs** whereas **the installation details were slightly different**, First I cloned this repository and added OpenCV_DIR system path, Next cmake ... BGS_PYTHON_SUPPORT=ON ... **failed**, So I wnet back to **Building Python wrapper from scratch** then used **python setup.py build** and **python setup.py install** as a result I saw the:
-- The C compiler ...
...
-- Configuring done
-- Generating done
-- Build files have been written to: ...

Therefore I utilized **VS 16 2019** to build the **bgslibrary.sln** in **.\bgslibrary\build\temp.win-amd64-3.7\Release**, which generated a file named **pybgs.cp37-win_amd64.pyd**

Based on this .pyd file I can smoothly run demo.py and demo2.py (removed a part), but the installation procedure and partial file names were not exactly the same as the tutorial, in addition the error "AttributeError: module 'pybgs' has no attribute 'DPAdaptiveMedian'".

I hope to know how to fix that.

Sincerely,