import { IBrontosaurusBody } from "@brontosaurus/definition";
import { BrontosaurusKey } from "./crypto";
import { BrontosaurusSign } from "./sign";
export declare class BrontosaurusToken {
    static withSecret(secret: BrontosaurusKey): BrontosaurusToken;
    static key(token: string): string | null;
    private readonly _secret;
    private constructor();
    sign(key: string, body: IBrontosaurusBody): BrontosaurusSign;
    key(token: string): string | null;
    clock(token: string, offset: number, allowDelay?: number): boolean;
    body(token: string): IBrontosaurusBody | null;
    check(token: string): boolean;
    validate(token: string, offset: number): boolean;
}