Using sunkit-image.enhance package

I am recently using the sunkit-image.enhance package to apply the wow filter on some fits files. The version I am using is 0.5.1. However, while running it shows that ‘sunkit_image.enhance’ has no attribute ‘wow’, also while checking the directory: dir(enhance), wow attribute is missing. I wanted to ask if anyone else is facing the same issue? I followed the sunkit_image.enhance.wow documentation.