import { NetworkService } from "src/core/contract/NetworkService";
import { Event } from "src/core/model/Event";
import { EventResult } from "src/core/model/EventResult";
import { TrackerConfig } from "src/core/model/TrackerConfig";
import { TrackerConfiguration } from "src/core/model/TrackerConfiguration";
/**
 * Default network service implementation using Fetch API.
 * Mirrors Android DefaultNetworkService.
 */
export declare class DefaultNetworkService implements NetworkService {
    private configuration;
    constructor(configuration: TrackerConfiguration);
    fetchConfiguration(): Promise<TrackerConfig>;
    sendEvent(event: Event): Promise<EventResult | null>;
    isNetworkAvailable(): boolean;
}