/**
 * Browser environment helpers that stay safe in Node, SSR, and test runners.
 */
export declare function getBatterySafely(): Promise<{
    level?: number;
    charging?: boolean;
} | null>;
export declare function getUserAgent(): string;
export declare function getLocale(): string | undefined;
export declare function getLocaleOrDefault(defaultLocale?: string): string;
export declare function getDeviceMemoryMb(): number | undefined;
export declare function getTimezone(): string | undefined;
//# sourceMappingURL=browser-env.d.ts.map