# some prep steps
ly = RBA::Layout::new
ly.create_cell("TOP")
l1 = ly.layer(1, 0)
ly.top_cell.shapes(l1).insert(RBA::Box::new(0, 0, 1000, 2000))
l2 = ly.layer(2, 0)
ly.top_cell.shapes(l2).insert(RBA::Box::new(500, 500, 1500, 2500))