import { TokenData } from './token.responses';
export declare class JwtHelper {
    static decodeToken(token: string): TokenData;
    static getTokenExpirationDate(token: string, property?: keyof Pick<TokenData, 'exp' | 'iat'>): Date | null;
    static isTokenExpired(token: string, offsetSeconds?: number): boolean;
    static isBefore(date: Date | null, offsetSeconds?: number): boolean;
}
export declare function encodeTestToken(payload: TokenData): string;