import { BookDataFetcher } from './book-data-fetcher';
export declare class GoodreadsApiFetcher implements BookDataFetcher {
    private _version;
    private _key;
    private _id;
    private _perPage;
    private _page;
    constructor(id: string, key: string, version?: number, perPage?: number, page?: number);
    fetch(): Promise<string>;
    incrementPage(): void;
    private get url();
}