import { RecordsQueue } from './Queue';
import { ObserverApi } from 'observers/types';
/**
 *
 */
export declare class Xhr implements ObserverApi {
    readonly xhrOld: XMLHttpRequest;
    readonly queue: typeof RecordsQueue;
    /**
     *
     */
    constructor();
    /**
     * Start xhr requests sniffing event
     */
    start(): void;
    /**
     * Stop xhr requests sniffing event
     */
    stop(): void;
    /**
     * Get all records
     */
    getRecords(): any[];
    /**
     * Get last record from queue
     */
    getLastRecord(): any;
    /**
     *  Clear records
     */
    clearRecords(): void;
}