import { IBrontosaurusBody } from "@brontosaurus/definition";
import { BrontosaurusKey } from "./crypto";
export declare class BrontosaurusSign {
    static create(key: string, body: IBrontosaurusBody, secret: BrontosaurusKey): BrontosaurusSign;
    private readonly _key;
    private readonly _body;
    private readonly _secret;
    private constructor();
    get body(): IBrontosaurusBody;
    get publicKey(): string;
    get privateKey(): string;
    token(expireAt?: number, issuedAt?: number): string;
}