import { SingleFlightConfig } from './constant.js';
import { IRequestQueue } from './request.js';
export declare class DataLoader {
    static mapInstance: Map<string, SingleFlight>;
    private static getSingleFlight;
    static load<T>(requestKey: string | object, callback: () => Promise<T>, configs?: SingleFlightConfig): Promise<T>;
}
declare class SingleFlight {
    private config;
    private intervalRequest;
    private timeLogs;
    private mapRequestCalling;
    private requestQueue;
    constructor(configs: SingleFlightConfig);
    load<T>(newRequest: IRequestQueue, callback: () => Promise<T>): Promise<any>;
    private fetch;
    private fetchRequestQueue;
    private addRequestQueue;
    private validateLimit;
    private createTimeLogs;
}
export {};