Is there a document for the variables used?

[MostafaGomaa93]

Hi, I have some questions, please

1- To know the available variables, I had to use the .advanced_vars argument. However, I don't know the meaning of all variables. For example, for the UZF package, there is "gwpet", which I think is the groundwater potential evapotranspiration, right? Is there any document for the meaning of the variables?

2- Is there a page or so (something like FloPy) that explains how to use the MODFLOWAPI arguments? The only information I got so far is from the notebook examples

Thanks a lot in advance