Function attach_composite_tooltip_widget_with_placement 

pub fn attach_composite_tooltip_widget_with_placement(
    ctx: &mut BuildContext<'_>,
    anchor_id: WidgetId,
    tooltip: CompositeTooltipWidget,
    delay: Duration,
    placement: TooltipPlacement,
) -> WidgetId

attach_composite_tooltip_boxed with an explicit TooltipPlacement. Attach an already-built CompositeTooltipWidget, honouring its own sticky setting.

The general primitive the other composite helpers lower to. Reach for it when the body is read-only and should not offer dwell promotion, or when the surface needs an accessible label — both of which are settings on the widget, and neither of which a helper taking a bare Box<dyn Widget> can express.