import { MouseEvent } from 'react';
export declare const useCSSFocusPopupHelper: <T = HTMLDivElement, ButtonType = HTMLDivElement>(configs?: {
    allowBgScroll?: boolean;
}) => {
    containerRef: import("react").MutableRefObject<T & HTMLElement>;
    onContainerFocus: () => void;
    onContainerBlur: () => void;
    onButtonMouseDown: (e: MouseEvent<ButtonType, globalThis.MouseEvent>) => void;
    onClose: () => void;
};