import { type PopUpManager, type ShowPopUpResult } from '../../util/pop-up-manager.js';
import { type MenuItem } from './pop-up-menu-item.js';
/**
 * Verifies that all items have unique ids.
 *
 * @category Internal
 */
export declare function assertUniqueIdProps(items: ReadonlyArray<Readonly<{
    id: PropertyKey;
}>>): void;
/**
 * Creates a new array of selections based on the current selection and new selection id. This
 * behaves differently when multi select is enabled, hence this function.
 *
 * @category Internal
 */
export declare function updateSelectedItems(
/** The item that should be newly toggled. */
newItem: Readonly<MenuItem>, currentSelection?: ReadonlyArray<PropertyKey>, isMultiSelect?: boolean): PropertyKey[];
/**
 * Handles toggling pop up state for `ViraDropdown`.
 *
 * @category Internal
 */
export declare function triggerPopUpState({ open, callback, popUpManager, host, }: {
    open: boolean;
    popUpManager: PopUpManager;
    host: HTMLElement;
    callback?: ((showPopUpResult: ShowPopUpResult | undefined) => void) | undefined;
}): void;