/**
 * Utility for checking internet connectivity using third-party endpoints
 */
export interface EndpointResult {
    endpoint: string;
    success: boolean;
    statusCode?: number;
    latencyMs: number;
    error?: string;
}
export interface ConnectivityCheckResult {
    connected: boolean;
    endpointResults: EndpointResult[];
    message: string;
}
/**
 * Check if the system has internet connectivity by testing against
 * multiple reliable third-party endpoints in parallel.
 * Returns as soon as one endpoint succeeds, reducing latency significantly.
 */
export declare function checkInternetConnectivity(): Promise<ConnectivityCheckResult>;
/**
 * Format connectivity check results for display
 */
export declare function formatConnectivityResults(result: ConnectivityCheckResult): string;
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