export declare function scryptHash(code: string): Promise<string>;
export declare function scryptVerify(stored: string, code: string): Promise<boolean>;
export declare function sign(uid: string, secret: string, exp?: number, scopes?: string[]): string;
export declare function verify(token: string, secret: string, scope?: string): {
    valid: boolean;
    error: string;
    payload?: undefined;
    header?: undefined;
    stack?: undefined;
} | {
    valid: boolean;
    payload: any;
    header: any;
    error?: undefined;
    stack?: undefined;
} | {
    valid: boolean;
    payload: any;
    header: any;
    error: string;
    stack?: undefined;
} | {
    valid: boolean;
    error: any;
    stack: any;
    payload?: undefined;
    header?: undefined;
};
declare const _default: null;
export default _default;
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