import { INetworkMonitor, NetworkConditions } from '../types/index';
/**
 * Network monitoring utility for React Native - optimized for Indian low-end devices
 */
export declare class NetworkMonitor implements INetworkMonitor {
    private isMonitoring;
    private unsubscribe?;
    private pingTimeoutMs;
    private pingTargets;
    private lastPingTime;
    private cachedPing?;
    private pingCacheDuration;
    constructor(pingTimeoutMs?: number, pingTargets?: string[]);
    /**
     * Get current network conditions
     */
    getCurrentConditions(): Promise<NetworkConditions>;
    /**
     * Start monitoring network changes
     */
    startMonitoring(callback: (conditions: NetworkConditions) => void): void;
    /**
     * Stop monitoring network changes
     */
    stopMonitoring(): void;
    /**
     * Static method to test ping target configuration (for testing/debugging purposes)
     *
     * @param pingTargets Array of ping target URLs to test
     * @param pingTimeout Timeout in milliseconds
     * @returns Promise with ping results
     */
    static testPingTargets(pingTargets?: string[], pingTimeout?: number): Promise<{
        targets: string[];
        results: Array<{
            url: string;
            ping?: number;
            error?: string;
        }>;
        median?: number;
    }>;
    /**
     * Measure network ping to configured endpoints - optimized for data efficiency
     */
    measurePing(): Promise<number>;
    /**
     * Ping a specific URL and measure response time
     */
    private pingUrl;
    /**
     * Process NetInfo object into NetworkConditions
     */
    private processNetInfo;
    /**
     * Map NetInfo network type to our NetworkType enum
     */
    private mapNetworkType;
    /**
     * Estimate speed from effective connection type - optimized for Indian networks
     */
    private estimateSpeedFromType;
    /**
     * Estimate speed from connection type when effective type is unavailable
     */
    private estimateSpeedFromConnectionType;
    /**
     * Estimate ping from connection type without network calls
     */
    private estimatePingFromConnectionType;
    /**
     * Cleanup resources
     */
    destroy(): void;
}