import { ShallowRef } from 'vue';
export type OpenDirection = "top" | "bottom";
export declare const useOpenDirection: (element: Readonly<ShallowRef<Element | null | undefined>>, defaultDirection?: OpenDirection) => {
    /**
     * Direction in which the popover should open to.
     */
    openDirection: import('vue').Ref<OpenDirection, OpenDirection>;
    /**
     * Detects in which direction a popover should be opened, depending on the available space in each direction.
     * Should only be called onBeforeMount or later to support server side rendering.
     */
    updateOpenDirection: () => void;
};
export declare const findParentWithHiddenOverflow: (element?: Element) => Element | undefined;