/**
 * Get the type of the click action from an event.
 *
 * @param event Click event
 * @param triggerElement The element which toggle the appeared element.
 * @param appearedElement The element that will be shown when get triggered.
 * @returns
 */
export declare function getClickType(event: Event, triggerElements: (HTMLElement | undefined | null)[], appearedElements: (HTMLElement | undefined | null)[]): {
    clickInside: boolean;
    clickOutside: boolean;
    clickTrigger: boolean;
};