import { Browser } from '@crawly/browser';
import { ResponseContract } from '@crawly/request-client/lib/contracts/response/ResponseContract';
export declare abstract class Crawler<T> {
    /**
     * The request.
     */
    protected request: T;
    /**
     * The browser to use in request.
     */
    protected browser: Browser;
    /**
     * Crawler constructor.
     */
    constructor();
    /**
     * Set request to crawler.
     *
     * @param request
     * @returns {Crawler}
     */
    setRequest(request: T): Crawler<T>;
    /**
     * Get request to crawler.
     *
     * @throws Error
     * @returns {T}
     */
    getRequest(): T;
    /**
     * Execute the crawler.
     *
     * @returns {Promise<ResponseContract>}
     */
    abstract execute(): Promise<ResponseContract>;
}