def bridged_interface_object
      VirtualBox::Global.global.host.network_interfaces.find do |ni|
        ni.name == bridged_interface
      end
    end
def bridged_interface_object
      VirtualBox::Global.global.host.network_interfaces.find do |ni|
        ni.name == bridged_interface
      end
    end
Gets the bridged interface object associated with the class if it
 exists.