Hi, I am working on developing a spectral IP (SIP) method to run on SimPEG. I learn that SimPEG can perform stretched-exponential inversion (SEI). There is very little information online about this feature and the closest source connecting SEI to SimPEG is Kang and Oldenburg Geophys J. Intl, 2019 paper. I was wondering if you have some tutorial or snippets that would guide me through the process of running SEI using SimPEG. If there is work to contribute to on this direction, please share the to-do-list so I can contribute to the group efforts. Thanks