export type PageLock = {
    isLocked: false;
} | {
    isLocked: true;
    message?: string;
};
export type PageLocks = {
    forwardLock: PageLock;
    lockForward: (message?: string) => void;
    unlockForward: () => void;
    previousLock: PageLock;
    lockPrevious: (message?: string) => void;
    unlockPrevious: () => void;
    lockAll: (message?: string) => void;
    unlockAll: () => void;
};
export declare const usePageLock: () => PageLocks;