useScrollbar method
      
void
useScrollbar({ 
    
    
- ScrollController? controller,
 - bool? thumbVisibility,
 - bool? trackVisibility,
 - double? thickness,
 - Radius? radius,
 - ScrollNotificationPredicate? notificationPredicate,
 - bool? interactive,
 - ScrollbarOrientation? scrollbarOrientation,
 
Implementation
void useScrollbar({
  ScrollController? controller,
  bool? thumbVisibility,
  bool? trackVisibility,
  double? thickness,
  Radius? radius,
  ScrollNotificationPredicate? notificationPredicate,
  bool? interactive,
  ScrollbarOrientation? scrollbarOrientation,
}) =>
    _add((w) => Scrollbar(
          child: w,
          controller: controller,
          thumbVisibility: thumbVisibility,
          trackVisibility: trackVisibility,
          thickness: thickness,
          radius: radius,
          notificationPredicate: notificationPredicate,
          interactive: interactive,
          scrollbarOrientation: scrollbarOrientation,
        ));