PlacementForUIElement

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PlacementForUIElement: { after: string; } | { before: string; } | { at: "start" | "end"; }

Used in UiController.createOrUpdatePanel to specify the position of a panel in the stack and in UiController.createPanelElements to specify the position of an element in a panel.

In both cases, the default value is { at: "end" }.