/**
 * ```ts
 * const {currentZIndex, nextZIndex} = useZIndex(THEME.zIndex.dialog);
 * const dialogButtonZIndex = nextZIndex(); // 2001
 * const confirmZIndex = nextZIndex(); // 2002
 * ```
 */
export declare const useZIndex: (initialZIndex: number | string) => {
    currentZIndex: import("vue").ComputedRef<number>;
    nextZIndex: () => number;
};