import { DeviceInfo, BrowserInfo, OSInfo, ScreenInfo } from '../models/device.model';
/**
 * Detect browser information from user agent
 */
export declare function detectBrowser(userAgent: string): BrowserInfo;
/**
 * Detect operating system from user agent
 */
export declare function detectOS(userAgent: string): OSInfo;
/**
 * Get screen information
 */
export declare function getScreenInfo(): ScreenInfo;
/**
 * Generate a unique device fingerprint
 */
export declare function generateDeviceFingerprint(): string;
/**
 * Generate a readable device name
 */
export declare function generateDeviceName(deviceInfo: Partial<DeviceInfo>): string;
/**
 * Collect complete device information
 */
export declare function collectDeviceInfo(): DeviceInfo;
/**
 * Check if device info has changed (for detecting device changes)
 */
export declare function hasDeviceChanged(storedDeviceId: string): boolean;
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