Please alias Geom::BoundingBox#corner() as Geom::BoundingBox#[].
Example after selecting a component instance:
mod = Sketchup::active_model
ents = mod.entities
c = mod.selection[0]
b = c.bounds
#
ents.add_face( b[0], b[1], b[3], b[2] )
Currently I have to define a singleton method (where the comment is,) like:
def b.[](arg); self.corner(arg); end
It is more intuitive that the [] method accesses the box’s corners.