export declare class AswLicense {
    private static licenseKey;
    private static watermarkMessage;
    private static extractExpiry;
    private static extractLicenseKey;
    private static formatDate;
    static registerLicenseKey(licenseKey: string): void;
    static validateLicense(): void;
    private static validateExpiryDate;
    static isDisplayWatermark(): boolean;
    static getWatermarkMessage(): string;
    private static outputInvalidLicenseKey;
    private static outputExpiredTrialKey;
    private static outputMissingLicenseKey;
    private static outputExpiredLicenseKey;
}