/** Take the hash if it is going, and report whether this caller got it. */
export declare function claimHash(): boolean;
/** Give the hash back, so a book that replaces this one can own it. */
export declare function releaseHash(): void;
/** Read the 1-based page from a hash, as a 0-based index. Null when it carries no page. */
export declare function pageFromHash(hash: string): number | null;
/** The hash that names `page` (0-based), leaving any other keys in `hash` untouched. */
export declare function hashWithPage(hash: string, page: number): string;
export interface DeepLinkHandle {
    /** Write the current page into the address bar. */
    push(page: number): void;
    stop(): void;
}
/**
 * Mirror the reader's page in the URL, and follow it when the URL changes (back/forward, or a
 * pasted link). `onNavigate` fires only for a page the book is not already on.
 */
export declare function bindDeepLink(win: Window, onNavigate: (page: number) => void): DeepLinkHandle;