/**
 * User agent randomization for anti-bot measures
 */
/**
 * Get a random user agent for the specified device mode
 */
export declare function getRandomUserAgent(deviceMode: 'desktop' | 'mobile'): string;
/**
 * Get a random timezone
 */
export declare function getRandomTimezone(): string;
/**
 * Get a random locale
 */
export declare function getRandomLocale(): string;
/**
 * Get viewport size for device mode
 */
export declare function getViewport(deviceMode: 'desktop' | 'mobile'): {
    width: number;
    height: number;
};
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