import { AxiosInstance, AxiosResponse } from "axios";
import { BookResponse, BookSearchResponse, AuthorResponse, AuthorQueryResults, Publisher, PublisherSearchResponse, Subject, SubjectSearchResponse, SearchIndexResponse, StatsResponse, BookSearchOptions, AuthorSearchOptions, AuthorDetailOptions, PublisherSearchOptions, PublisherDetailOptions, SubjectSearchOptions, IndexSearchOptions } from "./types";
/**
 * A typed wrapper for the ISBNdb v2 API.
 *
 * Instantiate using:
 * ```ts
 * const client = createIsbndbClient('API_KEY', 'PRO');
 * const isbndb = new IsbndbService(client);
 * ```
 */
export declare class IsbndbService {
    private client;
    constructor(client: AxiosInstance);
    /**
     * Fetch book details by ISBN-10 or ISBN-13.
     */
    getBook(isbn: string, withPrices?: boolean): Promise<AxiosResponse<BookResponse>>;
    /**
     * Search for books by keyword and optional filters.
     */
    searchBooks(query: string, options?: BookSearchOptions): Promise<AxiosResponse<BookSearchResponse>>;
    /**
     * Fetch author details and book list by author name.
     */
    getAuthor(name: string, options?: AuthorDetailOptions): Promise<AxiosResponse<AuthorResponse>>;
    /**
     * Search authors by name.
     */
    searchAuthors(query: string, options?: AuthorSearchOptions): Promise<AxiosResponse<AuthorQueryResults>>;
    /**
     * Fetch publisher details and book list by publisher name.
     */
    getPublisher(name: string, options?: PublisherDetailOptions): Promise<AxiosResponse<Publisher>>;
    /**
     * Search publishers by query.
     */
    searchPublishers(query: string, options?: PublisherSearchOptions): Promise<AxiosResponse<PublisherSearchResponse>>;
    /**
     * Fetch a subject and its parent.
     */
    getSubject(name: string): Promise<AxiosResponse<Subject>>;
    /**
     * Search subjects by query.
     */
    searchSubjects(query: string, options?: SubjectSearchOptions): Promise<AxiosResponse<SubjectSearchResponse>>;
    /**
     * Perform a general search across one of the supported indexes.
     */
    searchIndex(index: "subjects" | "publishers" | "authors" | "books", options?: IndexSearchOptions): Promise<AxiosResponse<SearchIndexResponse>>;
    /**
     * Retrieve general stats about the ISBNdb database.
     */
    getStats(): Promise<AxiosResponse<StatsResponse>>;
}