GPD for vacuum/suction grippers

Hi everyone!

My team and I are working on a novel end-effector for bin picking.
The challenge now involves Suction Grasp in a cluttered scene.

Has anyone modified GPD to work with suction grippers before?
Are there any other open-source repositories except Dex-Net and GraspNET that offer results similar to GPD, but for vacuum grippers?

Any input would be appreciated
Thanks!!