export declare function createWindowElement(content: string, placement?: "bottom-left" | "bottom-center" | "bottom-right"): import("../../ui-library/window.js").DevToolbarWindow;
export declare function closeOnOutsideClick(eventTarget: EventTarget, additionalCheck?: (target: Element) => boolean): void;
export declare function synchronizePlacementOnUpdate(eventTarget: EventTarget, canvas: ShadowRoot): void;