export declare class DropdownManager {
    readonly root: HTMLElement;
    readonly trigger: HTMLElement | null;
    readonly menu: HTMLElement | null;
    private readonly isDetails;
    private readonly onTriggerClick;
    private readonly onDocumentClick;
    private readonly onRootClick;
    private readonly onPageShow;
    private readonly onKeydown;
    constructor(root: HTMLElement | string);
    get isOpen(): boolean;
    open(): void;
    close(returnFocus?: boolean): void;
    toggle(): void;
    destroy(): void;
    static initAll(root?: ParentNode): DropdownManager[];
    private set;
    private items;
}
export default DropdownManager;
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