Does anyone have experience with the pdn controls that look like this?

pdngen::specify_grid_macro {
		power_pins "VDD"
		ground_pins "GND"
		blockages "li metal1 metal2"
		connect {{metal1_PIN metal2} {metal2 metal3} {metal3 metal4} {metal4 metal5}}
	}

I have a black_box macro with pins VDD and GND. I'm having trouble getting this to connect to the power rails

Plz refer this: https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/src/pdn/doc/README.md

@User has an example that does this. https://github.com/wokwi/wrapped_skullfet