Cannot regenerate the expected augmentation of an example image based on current Augraphy

[Tao-Yida]

In 2022, Augraphy official started a Kaggle competition on Denoising ShabbyPages, which gives an example image and its augmentation.

I cannot regenerate this augmentation via Augraphy, since I cannot re-create the "waterstain" effect on the left half of the augmented image.
Is this augmentation not in Augraphy, or it is a combination of multiple augmentations?