/// <reference types="node" />
import { EventEmitter } from "events";
import { IRequester } from "./IRequester";
import { ISuperAgentRequesterOptions } from "./ISuperAgentRequesterOptions";
/**
 * SuperAgent Requester
 */
export declare class SuperAgentRequester extends EventEmitter implements IRequester {
    private _activeRequests;
    private _options;
    constructor(options: ISuperAgentRequesterOptions);
    /**
     * Retrieve URL
     * @param url url to retrieve
     * @returns contents
     */
    get(url: string): Promise<string>;
    private wait;
    private getResource;
}