/**
 * @fileoverview Get browser network connection details using the Network Information API.
 * Provides type, speed estimate, save-data preference, etc.
 */
interface ConnectionInfo {
    type?: string;
    effectiveType?: string;
    downlink?: number;
    rtt?: number;
    saveData?: boolean;
    isSupported: boolean;
}
/**
 * Returns current network connection information.
 * Falls back gracefully if API is not supported.
 *
 * @returns An object with network type, speed, and flags.
 */
export declare function getConnectionInfo(): ConnectionInfo;
export {};