Ok, so that network is contained in "sky130_fd_io__top_gpiov2", so I can simulate that, or manually extract the resistor between the pad and "pad_a_esd_0". However, "sky130_fd_io__top_gpiov2" does not seem to actually contain ESD clamp diodes. I don't see these nelists instantiated anywhere, so I am not sure how it all connects together (Sorry for all these questions, is there some documentation I missed?). Looking through the other subcircuits in that file I see a few that seem to be clamping circuits. Is "sky130_fd_io__xres_esd" the correct pad ESD structure?