def METHOD_NAME(self):
    GenericDiffractometer.METHOD_NAME(self)
    self.front_light = self.get_object_by_role("frontlight")
    self.back_light = self.get_object_by_role("backlight")
    self.back_light_switch = self.get_object_by_role("backlightswitch")
    self.front_light_switch = self.get_object_by_role("frontlightswitch")