/**
 * License management for Claude Memory Pro
 */
import { License, LicenseStatus, LicenseValidationResult } from './types.js';
/**
 * Load license from disk
 */
export declare function loadLicense(): License | null;
/**
 * Save license to disk
 */
export declare function saveLicense(license: License): void;
/**
 * Check if user has Pro license
 */
export declare function isPro(): boolean;
/**
 * Check if key is LemonSqueezy format
 */
export declare function isLemonSqueezyKey(key: string): boolean;
/**
 * Validate a license key format (accepts both LemonSqueezy and legacy formats)
 */
export declare function validateKeyFormat(key: string): boolean;
/**
 * Activate a license key
 *
 * For LemonSqueezy keys: Validates against their API
 * For legacy keys: Format check only (backwards compatibility)
 */
export declare function activateLicense(key: string): Promise<LicenseValidationResult>;
/**
 * Deactivate (remove) the current license
 */
export declare function deactivateLicense(): boolean;
/**
 * Get current license status
 */
export declare function getLicenseStatus(): LicenseStatus;
/**
 * Get a user-friendly error message for Pro features
 */
export declare function getProFeatureMessage(featureName: string): string;