How to load SSVEP data in Gumpy

First of all thanks for creating this toolbox, I am using Gumpy for my dissertation thesis.
Following the tutorial, the SSVEP data available cannot be loaded using the GrazB since the dataset is looking for T and E separation, which SSVEP data does not have. Is there another instantiation of the Dataset abstract class I can use to load SSVEP?
Thank you